Symp TracTracking POTS day to day
POTS generates numbers on its own — your watch already sees the heart-rate spikes. What the numbers miss is how the day actually went. The useful diary joins both halves.
Let Apple Health carry the objective half
Resting heart rate and workout/standing spikes flow from Apple Watch into Apple Health automatically; a diary that reads Health data (with your approval) saves you typing the numbers and keeps them honest. In Symp Trac, heart-rate metrics can sit right next to your logged symptoms.
Log the subjective half daily
Dizziness or presyncope (0–10), fatigue, brain fog, and a simple "how upright was the day" — plus the classics: fluids and salt intake as rough numbers or yes/no targets. Two taps each, once a day. On the monthly view you're looking for which combinations precede the crashes.
Watch for the day-after effect
Exertion and heat commonly bill you the next day. That lag is invisible to memory and obvious on a shifted comparison — the same method as in finding your flare triggers. Two weeks of overlap is the honest minimum before trusting any pattern.
For the cardiologist
Bring monthly counts: bad-dizziness days, average fatigue, and the heart-rate context alongside. One page, framed by the trend — the appointment guide covers the delivery.
Track it in Symp Trac — a private symptom diary for iPhone & Apple Watch. Two-tap logging, a month on one screen, doctor-ready reports. No account, no ads; the core diary is free.
Frequently asked
What should I track daily with POTS?
Dizziness/presyncope, fatigue and brain fog on 0–10 scales, plus fluids, salt and how upright your day was — with heart-rate data flowing in from Apple Health.
Can Apple Watch data replace a symptom diary?
No — it captures heart rate, not how the day felt or what you did about it. The value is in pairing the two.
Why do I crash the day after activity?
Post-exertional payback with a one-day lag is common in POTS; a shifted-day comparison in your diary usually makes the pattern visible within a few weeks.