Playbook
What should I actually do about POTS?
POTS (postural orthostatic tachycardia syndrome) is a disorder of the automatic nervous system that makes your heart race and leaves you dizzy, foggy, and exhausted on standing. It overwhelmingly affects women and is often dismissed or misdiagnosed as anxiety. This walks you through recognizing it, the simple test that confirms it, and the treatments that genuinely help.
POTS & Dysautonomia · reviewed July 2026 · 17 cited papers
See a clinician promptly if
- !Fainting (not just near-fainting), chest pain, or an irregular heartbeat. True loss of consciousness and cardiac symptoms need evaluation to exclude heart rhythm problems and other causes before settling on POTS.
- !A large drop in blood pressure on standing. That points to orthostatic hypotension, a different condition with different treatment, rather than POTS.
- !Episodes with throat swelling, wheezing, or collapse. Possible anaphylaxis in the mast cell picture, which is an emergency and needs an action plan and adrenaline access.
Step 1
Is it POTS, and what else travels with it?
POTS is defined by a sustained heart-rate rise on standing without a big blood-pressure drop, plus symptoms, for at least three months. Two related conditions frequently overlap, and recognizing them changes management.
Step 2
What to get checked
POTS is confirmed with a simple standing test, and the rest of the work-up excludes mimics and looks for treatable contributors.
A 10-minute active stand test (or tilt-table test)
Measuring heart rate and blood pressure lying down and then standing for 10 minutes is the core test; a sustained rise of 30+ beats per minute with symptoms, without a big blood-pressure drop, defines POTS.
Bloods to exclude contributors (thyroid, anemia, iron)
Thyroid disease, anemia, and low iron can cause or worsen a racing heart and fatigue and are simple to treat.
Mast cell markers only if MCAS is genuinely suspected
If allergic-type multisystem episodes are prominent, objective testing (such as tryptase measured during and after an episode) is needed, because the diagnosis should rest on criteria, not symptoms alone.
Step 3
What actually works
The foundation is non-drug: expanding blood volume and rebuilding exercise tolerance. Medications are added when that is not enough, and the overlap conditions are treated alongside.
Fluids, salt, and compression
Drinking more fluid, increasing salt intake (under medical guidance), and wearing waist-high compression expands blood volume and reduces the pooling that drives symptoms on standing. Simple, low-risk, and genuinely effective.
How to get itSelf-management with guidance.
CautionsIncrease salt only with medical advice if you have high blood pressure or kidney or heart conditions.
Graded, mostly recumbent exercise reconditioning
A structured program that starts with lying or seated exercise (recumbent bike, rowing, swimming) and builds slowly retrains the circulation and improves symptoms over months. In a trial it outperformed a beta-blocker. Starting upright or too hard backfires.
TimelineMonths; progress is gradual and non-linear.
How to get itIdeally a POTS-aware physiotherapy program.
Heart-rate-lowering and other medications
When needed, options include low-dose propranolol or ivabradine to slow the racing heart, and midodrine or fludrocortisone to support blood pressure and volume. Choice depends on your subtype and blood pressure.
How to get itPrescription, specialist-guided.
Treat overlapping conditions
If mast cell activation genuinely overlaps, H1 and H2 antihistamines and mast cell stabilizers can help those symptoms; if joints are hypermobile, targeted physiotherapy protects them. Treating the whole cluster reduces the overall burden.
How to get itPrescription and referral.
Set your expectations
- POTS is real and measurable, not anxiety, and a simple standing test confirms it.
- The non-drug basics (fluids, salt, compression, and graded exercise) do much of the work; medications support them rather than replace them.
- Recovery is gradual and uneven, and heat, illness, and your menstrual cycle can trigger flares.
- When mast cell or hypermobility features overlap, treating the whole cluster works better than treating POTS alone.
Step 4
Take this to your doctor
“I get a racing heart, dizziness, and brain fog whenever I stand, and I would like a 10-minute stand or tilt-table test to check for POTS rather than having it put down to anxiety.”
Questions to ask
- Can we do a standing or tilt-table test and measure my heart rate and blood pressure?
- Should we check thyroid, iron, and anemia as contributors?
- What is my plan for fluids, salt, compression, and a graded exercise program?
- If medication is needed, which fits my blood pressure and subtype?
What to bring
- Home heart-rate readings taken lying down and after standing for a few minutes
- A symptom diary noting triggers like heat, meals, and your cycle
- Notes on any allergic-type episodes or very flexible joints
When to push. Ask for cardiology or autonomic-specialist referral if the diagnosis is unclear, if you faint or have chest pain, or if first-line measures are not enough, and for allergy/immunology input if mast cell episodes are prominent.
Step 5
Where the science is going
An autoimmune basis for some POTS
Research points to autoantibodies against adrenergic and other receptors in a subset of people with POTS, which may eventually lead to tests and targeted treatments. It also helps explain why POTS often follows an infection.
Long COVID has put dysautonomia on the map
A wave of POTS and mast-cell symptoms after COVID-19 has driven research and clinical attention to these conditions, which had long been under-recognized.
All sources
Every claim above links to peer-reviewed research. Full list below.
- Postural orthostatic tachycardia syndrome (POTS): State of the science and clinical care from a 2019 NIH Expert Consensus Meeting - Part 1 (2021). Autonomic Neuroscience. doi.org/10.1016/j.autneu.2021.102828
- Postural Orthostatic Tachycardia Syndrome: Prevalence, Pathophysiology, and Management (2018). Drugs. doi.org/10.1007/s40265-018-0931-5
- Postural Orthostatic Tachycardia Syndrome: JACC Focus Seminar (2019). Journal of the American College of Cardiology. doi.org/10.1016/j.jacc.2018.11.059
- Postural orthostatic tachycardia syndrome: clinical presentation, aetiology and management (2019). Journal of Internal Medicine. doi.org/10.1111/joim.12852
- Gynecologic disorders and menstrual cycle lightheadedness in postural tachycardia syndrome (2012). International Journal of Gynaecology and Obstetrics. doi.org/10.1016/j.ijgo.2012.04.014
- Women, orthostatic tolerance, and POTS: a narrative review (2025). Autonomic Neuroscience. doi.org/10.1016/j.autneu.2025.103284
- Postural Orthostatic Tachycardia Syndrome, Menopause and Hormone Replacement Therapy: Clinical Decisions in Times of Uncertainty (2026). Journal of Clinical Medicine. doi.org/10.3390/jcm15041477
- Postural orthostatic tachycardia syndrome as a sequela of COVID-19 (2022). Heart Rhythm. doi.org/10.1016/j.hrthm.2022.07.014
- Randomized Trial of Ivabradine in Patients With Hyperadrenergic Postural Orthostatic Tachycardia Syndrome (2021). Journal of the American College of Cardiology. doi.org/10.1016/j.jacc.2020.12.029
- Exercise training versus propranolol in the treatment of the postural orthostatic tachycardia syndrome (2011). Hypertension. doi.org/10.1161/HYPERTENSIONAHA.111.172262
- Autoimmune basis for postural tachycardia syndrome (2014). Journal of the American Heart Association. doi.org/10.1161/JAHA.113.000755
- Adrenergic Autoantibody-Induced Postural Tachycardia Syndrome in Rabbits (2019). Journal of the American Heart Association. doi.org/10.1161/JAHA.119.013006
- Updated Diagnostic Criteria and Classification of Mast Cell Disorders: A Consensus Proposal (2021). HemaSphere. doi.org/10.1097/HS9.0000000000000646
- Diagnosis of mast cell activation syndrome: a global "consensus-2" (2021). Diagnosis. doi.org/10.1515/dx-2020-0005
- Mast cell activation syndrome: An up-to-date review of literature (2024). World Journal of Clinical Pediatrics. doi.org/10.5409/wjcp.v13.i2.92813
- Mast cell activation symptoms are prevalent in Long-COVID (2021). International Journal of Infectious Diseases. doi.org/10.1016/j.ijid.2021.09.043
- Dysautonomia, Hypermobility Spectrum Disorders and Mast Cell Activation Syndrome as Migraine Comorbidities (2023). Current Neurology and Neuroscience Reports. doi.org/10.1007/s11910-023-01307-w
This playbook is educational and is not medical advice. Hair loss has many causes and individual treatment decisions belong with a clinician who can examine you.