POTS Tracker: How to Monitor Postural Orthostatic Tachycardia Symptoms That Actually Matter

Why most POTS trackers miss the picture

Most "POTS apps" track heart rate and call it a day. But heart rate alone misses roughly 70% of the variables that actually predict POTS flares.

POTS is a multi-system condition. The triggers and modulators include hydration, sodium load, sleep, menstrual phase, weather (especially heat and barometric pressure), post-exertional state, stress load, food timing, and recent medication adherence. A useful POTS tracker captures the inputs and the outputs.

The Recalibrate POTS tracker is built around this. Heart rate is in there - but so are the 19 other variables that explain why two days with the same activity level produce wildly different POTS days.

The 20 variables a useful POTS tracker captures

Cardiovascular:
1. Supine heart rate
2. Standing heart rate (10-min stand test or wearable orthostatic detection)
3. Heart rate variability (HRV)
4. Blood pressure (where measurable)

Hydration & electrolytes:
5. Daily water intake
6. Sodium intake
7. Electrolyte supplementation taken

Sleep:
8. Hours slept
9. Sleep onset latency
10. Wakefulness during the night
11. Subjective restoration

Hormonal:
12. Menstrual cycle day (huge effect on POTS)
13. Pregnancy / postpartum status

Environmental:
14. Ambient temperature
15. Barometric pressure
16. Humidity

Exertion:
17. Activity load (24h and 48h prior - PEM lag)
18. Cognitive load

Symptom load:
19. Lightheadedness, presyncope, palpitations, tachycardia, fatigue, brain fog, nausea, exercise intolerance scored daily

Modulators:
20. Medications taken (beta-blockers, ivabradine, midodrine, fludrocortisone, etc.)

Across weeks the correlations become visible - and that is when intervention becomes precise rather than guesswork.

How to use the tracker

Three practices make tracker data actually useful:

1. Daily log, even on good days. The pattern is invisible if only flare days are logged.

2. Morning orthostatic test. A 10-minute lie-then-stand heart rate check first thing - simple, free, and the most informative single data point.

3. Look at 30-day correlations, not daily data. POTS varies hour-to-hour. The signal is in the monthly trends, not in any single day.

The Recalibrate app does the correlation work automatically. You see things like: "your worst POTS days correlate with sleep <6h two nights prior and barometric pressure drops >10 mb in 24h" - patterns no human is going to pattern-match on their own.

What this changes clinically

Walking into a cardiology, autonomic, or long COVID clinic with a structured 8-week POTS log is one of the highest-leverage patient-side moves there is. Most clinicians have never seen this level of data from a patient, and prescribing decisions shift accordingly.

Recalibrate exports an appointment-ready summary directly from the app.

Open the Recalibrate POTS tracker →

Related reading:
→ Nervous system dysregulation pillar guide
→ Stuck in fight or flight
→ What causes brain fog - because POTS-related cerebral hypoperfusion produces classic brain fog.