What is MCAS?

MCAS stands for Mast Cell Activation Syndrome. “It’s like being allergic to everything and nothing all at once”, via @PinkSaltCollective instagram. It is an inappropriate response, or activation, of the body’s mast cells- often without a true ‘allergy’ (though people with MCAS can also have allergies and anaphylaxis).

MCAS stands for “Mast Cell Activation Syndrome”. “It’s like being allergic to everything and nothing all at once. by Pink Salt Collective // @pinksaltcollective

Plenty of MCAS patients get told after allergy testing that they aren’t allergic to anything, despite having severe allergic reactions such as hives, swelling, itching, GI issues, migraines, sinusitis, etc.

“We got your skin test back! You’re not allergic to anything! But here’s 6 allergy medications” is a common experience for MCAS patients. by Pink Salt Collective // @pinksaltcollective

Interestingly, MCAS can sometimes cause POTS or dysautonomia-type symptoms, with symptoms such as tachycardia and low blood pressure.

According to Dr. Raj, over 30% of POTS patients test positive for MCAS.

Whether this is a chicken or the egg situation, we don’t necessarily know, but it is worth noting the strong overlap in patients. For some, treating MCAS can help with POTS symptoms.

What are Mast Cells & Mediators?

Mast cells are responsible for the body’s allergic reactions. They secrete mediators such as histamine and tryptase (among others) – this process is called degranulation. During a true invasion, this helps to protect our bodies. During an MCAS episode, this degranulation is inappropriate.

Levels of these mediators can be measured as a part of testing for MCAS (blood and urine samples).

How is MCAS Tested for & Treated?

MCAS testing is sensitive and can be hard to get a ‘positive’ test during an episode. As such, many practitioners suggest that diagnosis be based on symptoms and response to therapy.

Treatment often includes: H1 blockers (such as Allegra, Zyrtec, Claritin), H2 blockers (such as pepcid), mast cell stabilizers (such as Cromolyn or Ketotifen).

Tests often include: Serum tryptase, serum histamine, 24 hour urine (N-methylhistamine, 11B -Prostaglandin F2α (11B-PGF2α) and/or Leukotriene E4 (LTE4))

What is MCAS? by Pink Salt Collective // @pinksaltcollective

What is EDS?

EDS stands for Ehlers-Danlos Syndromes.

There are 13 subtypes of EDS.

EDS stands for Ehlers-Danlos Syndromes. There are 13 subtypes of EDS. “I’ve got connective tissue issues”- @colourblindzebra , post by Pink Salt Collective // @pinksaltcollective

What is EDS?

EDS or the Ehlers-Danlos Syndromes are a group of connective tissue disorders that can be inherited and are varied both in how they affect the body and in their genetic causes.

What are symptoms of EDS?

They are generally characterized by joint hypermobility (joints that stretch further than normal),skin hyperextensibility (skin that can be stretched further than normal), and tissue fragility.

What are the Types of EDS?

There are 13 types of EDS according to the Ehlers-Danlos society:

Classical EDS (cEDS)

Classical-like EDS (clEDS)

Cardiac-valvular EDS (cvEDS)

Vascular EDS (vEDS)

Hypermobile EDS (hEDS) – most common

Arthrochalasia EDS (aEDS)

Dermatosparaxis EDS (dEDS)

Kyphoscoliotic EDS (kEDS)

Brittle Cornea Syndrome (BCS)

Spondylodysplastic EDS (spEDS)

Musculocontractural EDS (mcEDS)

Myopathic EDS (mEDS)

Periodontal EDS (pEDS)

What are Symptoms of EDS?

Symptoms can include but are not limited to:

  • Frequent joint dislocations, sprains, or strains
  • Velvety smooth skin
  • Extra stretchy skin
  • Easy bruising, bleeding, or scarring
  • Extra bendy joints (eg. can touch thumb to forearm)
  • Unusual scarring
  • Unusual stretch marks
Pink Salt Collective // @PinkSaltCollective [Image Description: EDS or the Ehlers-Danlos Syndromes are a group of connective tissue disorders that can be inherited and are varied both in how they affect the body and in their genetic causes. They are generally characterized by joint hypermobility (joints that stretch further than normal),skin hyperextensibility (skin that can be stretched further than normal), and tissue fragility.]
Pink Salt Collective // @PinkSaltCollective lists the types of EDS. [Image Description: There are 13 types of EDS according to the Ehlers-Danlos society:
Classical EDS (cEDS)
Classical-like EDS (clEDS)
Cardiac-valvular EDS (cvEDS)
Vascular EDS (vEDS)
Hypermobile EDS (hEDS) – most common
Arthrochalasia EDS (aEDS)
Dermatosparaxis EDS (dEDS)
Kyphoscoliotic EDS (kEDS)
Brittle Cornea Syndrome (BCS)
Spondylodysplastic EDS (spEDS)
Musculocontractural EDS (mcEDS)
Myopathic EDS (mEDS)
Periodontal EDS (pEDS)]

There is a fair bit of overlap between hEDS and POTS, as POTS, EDS and MCAS tend to occur in a cluster of 3.


What is Vasoconstriction? What is Vasodilation?

If you have POTS, you’ve probably heard these two terms- vasoconstriction & vasodilation.

What is Vasoconstriction & Vasodilation?

Vasoconstriction is the constriction, or tightening, of blood vessels- things get tighter and blood is able to be pushed back up against gravity. In other words, vasoconstriction is the narrowing (constriction) of blood vessels by small muscles in their walls. (1) Vasoconstriction is often associated with increased blood pressure.

Vasodilation is the relaxation of blood vessels. Things get looser, and blood is able to flow more freely (if there is enough of it), or it can pool if there isn’t enough vasoconstriction to counteract gravity. Vasodilation is caused by the muscles in the walls of the blood vessels relaxing. Vasodilation is often associated with reduced blood pressure.

Why Should I Care?

As you can see above, vasoconstriction and vasodilation directly impact blood flow and blood pressure. A subset of POTS is caused by chronic vasodilation, which can be helped by vasoconstriction. Another subset of POTS is hypothesized to be caused by low blood volume, which vasoconstriction can help compensate for.

For some folks with low blood pressure, adding a medication that is a vasoconstrictor can help alleviate symptoms. Likewise, if high blood pressure is an issue, sometimes a vasodilator can help. It’s also hypothesized that some brain fog, if caused by low blood volume or vasodilation, can be helped by vasoconstriction. For me personally, understanding these concepts just helps me understand a bit more what’s going on with my body.

Fun fact: caffeine is a natural vasoconstrictor. That’s why it’s often used for energy & migraines.


  1. Mount Sinai,%2C%20drugs%2C%20or%20psychological%20conditions.

Why is Sleep So Important for POTS? (& tips for improving sleep in POTS)

Sleep resets the nervous system- and POTS is an autonomic nervous disorder. Sleep is the time the body has to rest & repair itself. When we get poor sleep, our body has less time to repair & rest. Our nervous system has less time to reset.

Personally, lack of sleep is the biggest trigger for my POTS symptoms, followed closely by dehydration. Even if I take all of my medications and hydrate, if I slept poorly I generally feel poorer than usual.

Unfortunately, quality sleep can be difficult for those with autonomic disorders, POTS included.

Studies have shown that those with POTS sometimes spend less time in REM sleep. They may have a harder time falling asleep, staying asleep, or may wake up feeling unrefreshed.

If you are having trouble sleeping with POTS, talk to your doctor.

Sleep hygiene and bedtime routines are often the first line of treatment. The more clues you can give to your body and nervous system that it is time to rest, the better.

My personal tips for improving sleep in POTS:

– Take melatonin 2 hours before desired sleep time

– If adrenaline surge, lay with ice pack on chest

– No screens for 1 hour before bed

– Drink tea or do something calming before bed

– Listen to sleep story or guided meditation while falling asleep

– Ensure bedroom temperature is cool

Follow @pinksaltcollective or join our email list for more POTS & chronic illness tricks, tips & community 💕✨🥄


Halsey has announced that they have POTS, EDS & MCAS. But what does this mean? And how are they connected?

In May of 2022, Halsey announced that they have diagnoses of POTS, EDS & MCAS. For many, these may just sound like a bunch of random letters. But to many with POTS, EDS & MCAS, these are an all-too-familiar triad of syndromes that can significantly alter life.


POTS stands for Postural Orthostatic Tachycardia Syndrome. For more information, see my post on POTS. In summary, POTS consists of several symptoms including increased heart rate upon standing, dizziness, migraines, fatigue, etc.


EDS stands for Ehlers-Danlos Syndrome. It is a collagen/ connective tissue disorder often characterized by hypermobility. There are several types of EDS, but the most common is hEDS.


MCAS stands for Mast Cell Activation Syndrome, where the body’s mast cells (allergy cells) respond inappropriately.


As is often the case, there isn’t sufficient research and doctors don’t entirely know for sure. However, there are some pretty well tracked theories, that I’ll explain.

1. Faulty Collagen – EDS & POTS

EDS means faulty collagen, and often weak blood vessels. If your blood vessels don’t constrict, blood can’t get pushed up to your head & heart, leading to POTS symptoms.

2. Angry Mast Cells- MCAS & POTS

When mast cells get activated, they release mediators such as histamine, which can be vasodilators. Many mast cells are right near nerves, so these mediators can act on these neighboring nerves. This can cause dysautonomia or POTS-like symptoms such as tachycardia or blood pressure changes.

3. Altered Mast Cells- EDS & MCAS

Cells of the body are surrounded and supported by a network called the Extracellular Matrix (ECM), which can be made from structural materials like collagen. Mast Cells can stick to the ECM, which in turn alters their behavior. EDS, as a connective tissue disorder, could change the ECM enough to cause a change in Mast Cell behavior. (Source: EDS Society)

4. Symptom Overlap

In addition to the interplay of these 3 syndromes, I want to highlight that each of them can cause overlapping symptoms. For example, take a common symptom like headache:

POTS: headaches from lack of blood to brain

EDS: headahces from instability

MCAS: headaches from too much histamine

Other common symptoms include general pain, sinus issues, GI issues, fatigue, dizziness… all of which could be caused by any 3 or a combination of the above.

But there is hope.

1. Treatment Can Help!

Treating any of these syndromes can help improve symptoms in others. For example, treating MCAS with antihistamines and mast cell stabilizers can significantly help with GI issues, headaches, and even POTS symptoms (remember the angry mast cells next to nerves? Calm them down and you may calm down your POTS reaction. In theory. Didn’t work for me, hehe. However treating my MCAS did significantly improve the severity and frequency of my headaches/ migraines)

2. Raising awareness for future research

The more we can raise awareness about each of these syndromes individually, as well as the connection between them, the more research funding they can get.

3. You are not alone.

Browse through this page (and my instagram community) and find hundreds of others who are dealing with these same syndromes, or symptoms of these syndromes. Who are diagnosed and trying treatments, or who are still searching for answers.

Remember- your symptoms and experiences are valid. You deserve health and wellness.

As always, sending light, love, salt & spoons.


How is POTS Treated?

POTS stands for Postural Orthostatic Tachycardia Syndrome. For more information on what POTS is or how it’s treated, feel free to read our post that explains it all.


The first line of treatment for POTS is typically lifestyle modifications. This can include increase hydration, electrolyte intake (via electrolyte drinks and/ or salt tabs), and exercise therapy. These should be individualized to each patient.

Pharmaceutically there are several medications that can treat POTS. What’s important is that you try to find any underlying causes and treat those. These can include other autoimmune diseases or vitamin deficiencies. If left with POTS, there are several classes of medications you can try.

POTS often occurs alongside MCAS (Mast Cell Activation Syndrome) and EDS (Ehlers Danlos Syndrome). In some cases, addressing these other syndromes can improve POTS symptoms.

Compression stockings (socks, tights, or even abdominal binders) can help with symptoms as well. Check out my post on compression for more details.


What is POTS?

POTS stands for Postural Orthostatic Tachycardia Syndrome.

Basically, this means that when upright, the body does not properly counteract gravity. Not enough blood returns up to the heart and brain, so the heart beats faster in response.

POTS falls under the umbrella term dysautonomia, or a dysfunction of the autonomic nervous system.

POTS is a syndrome, or group of symptoms. No two POTSies have exactly the same experience. Symptoms include dizziness, lightheadedness, fatigue, headaches, palpitations, brain fog & more. Sleep disturbances are common in POTS.

POTS is not rare. It is estimated to impact between 1-3 million Americans, or about 1 in 100.


Typically, an increase in water and salt intake is recommended. (Note: this is may contraindicated in certain types of POTS so check with your doctor). Pharmaceuticals such as beta blockers (to lower heart rate), florinef (to increase blood volume), midodrine (to increase vagal tone), mestinon (to increase nerve/ muscle communication), and others are often used. Treating the underlying cause, if known, can help. POTS can be a secondary condition due to other conditions that can cause autonomic neuropathy, such as diabetes, Lyme disease, or autoimmune disorders such as lupus or Sjögren’s syndrome. (Source: JHM)

For more POTS resources, check out our other posts.


What are the Different Subtypes of POTS?

According to Johns Hopkins, there are 3 different kinds of POTS: Neuropathic, Hyperadrenergic, and Hypovolemic. These types aren’t distinct, as many patient exhibit symptoms of multiple types at the same time. The category of your POTS can also change (eg. it can become hyperadrenergic later on)

Neuropathic POTS is a term used to describe POTS associated with damage to the small fiber nerves (small-fiber neuropathy). These nerves regulate the constriction of the blood vessels in the limbs and abdomen.

Hyperadrenergic POTS is a term used to describe POTS associated with elevated levels of the stress hormone norepinephrine. In hyperadrenergic POTS, blood pressure is often elevated upon standing. A common test for hyperadrenergic POTS (aka “hyperPOTS”) is to take a plasma norepinephrine laying & standing. If it rises more than 600 between laying & standing, that’s suggestive of hyperPOTS.

Hypovolemic POTS is a term used to describe POTS associated with abnormally low levels of blood (hypovolemia).


Adrenaline Surges: How to Sleep When Your Heart’s Got You Up

This post made SO MUCH sense to me! I was having this experience of what felt like adrenaline surges at night with POTS- rapid heart rate, sweating, shaking, etc. Thank you for validating that POTS adrenaline surge is a thing!

Chronically Salty

Have you ever woken up in the middle of the night with your heart racing, body shaking with tremors, and with night sweats? If you have dysautonomia or another nervous system disorder, you may be facing adrenaline surges. If you thought your sympathetic (flight or fight) nervous system was already maxed out as it is, you were wrong.

Adrenaline surges, or the sudden dumping of adrenaline in your body, can happen at any time of the day with nervous system dysfunctions.  For many, however, this happens most while sleeping. I often have triggers with mine: loud music, sound vibrations from movie theaters, after being scared, or even after having what I call an “active dream,” in which, for some reason, I am always doing epic parkcour.

POTS Flare vs. Adrenaline Surge

For people with Postural Orthostatic Tachycardia Syndrome, or POTS, you may be asking yourself how to distinguish between the…

View original post 862 more words


How Do Compression Socks Help With POTS?

I recently shared a post about compression socks on my instagram story and I had several folks reach out and ask why I wore compression socks for POTS. (If you want more information on POTS and how it’s diagnosed read my post on it here).

POTS, Postural Orthostatic Tachycardia Syndrome, is a condition where your autonomic nervous system malfunctions and doesn’t push enough blood back up when you stand up. In other words, gravity wins and pulls down more blood than your body can react against. As a response, the heart beats faster to try to pump more blood back up. Hence the tachycardia symptom.

In POTS, there can be two reasons why blood doesn’t make it back up:

Low blood volume (there’s not enough blood, so it can’t reach all the way up)

Loose blood vessels (lack of vasoconstriction doesn’t push blood back up)

In both cases, compression can help POTS- to augment the lack of blood volume or of vasoconstriction- to push blood back up towards the head and the heart.

POTS Compression- two people showing the impact of blood pooling without and with compression
The impact of compression on POTS. Two people are shown, one without compression and one with compression. Both have POTS. The one with compression has more blood available to the upper body than the one without.

There are various strengths and styles of compression. Strengths can range from light (10-15mmHg), medium (15-20mmHg), strong (20-30mmHm), firm (30-40mmHg) depending on your condition and what your doctor prescribes. Styles can include knee-high, thigh-high or waist-high, and can be footed or footless. There are also abdominal binders for those who find that blood pools in their stomach region or those who feel tired after eating.

Have questions? Let me know in the comments what you’d like to see on a future post! I hope this gave you insight into why I wear compression for POTS.