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Published 2 September 2026

How to track symptoms your cardiologist can actually use

Most appointments are short. You will get somewhere between ten and twenty minutes, part of which goes on admin, and you are expected to compress months of unpredictable symptoms into a description that a specialist can act on. Memory is a terrible tool for this. A log is a good one — but only if it is built to be read by someone else.

The failure mode is not too little data

People arrive with one of two things. Either nothing written down, and the appointment turns into “it happens quite often, maybe a few times a week, worse in summer I think”. Or a 40-page export from a health app, printed at the last minute, which nobody has time to read and which mostly contains step counts.

The useful version sits in between. It is short, it is structured the same way every day, and it is built around the questions a clinician is actually going to ask: what happens, when does it happen, how long does it last, what makes it worse, what makes it better, and is it changing over time.

What to record daily — the short list

Aim for something you can complete in under a minute, twice a day. A log you abandon after nine days is worse than a simpler one you keep for three months.

• Symptoms, with severity. Pick a small fixed set — lightheadedness, palpitations, brain fog, fatigue, nausea, headache, breathlessness, whatever yours are — and rate each 0 to 10, or none/mild/moderate/severe. The scale matters less than using the same one every day.
• Position and timing. Whether the symptom came on lying, sitting, standing or walking, and how long you had been in that position. This single field is what separates orthostatic symptoms from everything else, and it is the one most logs omit.
• Duration, and what ended it. “Twelve minutes, resolved after lying down” is enormously more useful than “bad afternoon”.
• Heart rate, when you can. Resting, and during a symptom if you can catch one. Note where the number came from — watch, cuff, fingers.
• Fluids and salt. Volume, in the units you actually think in, and salt in whatever form you take it. These are the two things most commonly adjusted, so having a before-and-after record is directly useful.
• Medications and supplements, with timing. Including the ones you stopped and the days you forgot. Missed doses are signal, not embarrassment.
• Context that plausibly matters. Sleep, heat, illness, alcohol, big meals, menstrual cycle, unusually long standing. Do not record everything; record the handful of things you suspect.
• Function. One line: what you could and could not do that day. Showered standing or sitting. Made it round the shop or left the trolley. This is the part that communicates impact, and it is what a specialist remembers.

Episodes deserve their own entry

A near-faint, an actual faint, or a flare that put you out for a day should not be buried in a daily average. Write those up separately and in more detail: the time, what you were doing in the ten minutes before, how it started, how it progressed, whether you lost consciousness, whether anybody witnessed it, how long recovery took, and what you had eaten or drunk. If you fainted, whether anyone saw jerking movements, and how long you were confused afterwards, are questions you will be asked. Write the answer down while it is fresh.

Add stand tests to give the log a spine

Symptom diaries are subjective by nature, and clinicians know it. What raises the value of the whole log is a series of objective measurements taken the same way each time. That is what a repeated at-home stand test provides: resting heart rate, then the readings at 1, 3, 5 and 10 minutes of standing, on good days and bad ones, over weeks. See how to run one properly — the value is entirely in the consistency.

Two or three tests a week is plenty. What you want by appointment day is a plot of resting versus standing heart rate over time, so that the trend is visible without anybody having to add up columns.

What a useful log looks like on the page

Assume the person reading it has ninety seconds. Structure it accordingly.

1. One summary page first. Five or six lines: how long this has been going on, the top three symptoms and roughly how often, what makes them better and worse, what you have already tried, and the one question you most want answered today.
2. One chart. Resting and standing heart rate over the tracked period, with dates on the axis. If you only bring one visual, bring this.
3. A symptom-frequency summary. How many days out of the last 60 had moderate or severe symptoms — a count, not a narrative.
4. Episodes. A short list with dates, one or two lines each.
5. The raw data last, and optional. Say it exists and offer it. Do not lead with it.

Print it. Two pages, stapled, that can be put in a file beats a phone screen you have to scroll and a link nobody will open. Bring a second copy so you can leave one behind.

What to leave out

Step counts, sleep-tracker scores and every reading your watch produced while you slept — none of it will be read. Long prose about how the symptoms make you feel emotionally: real and important, but it belongs in the conversation rather than the document. Screenshots of other people’s test results from forums. Your own conclusions dressed as findings. And self-diagnosis in the summary line, which tends to change how the whole document is read.

How to hand it over

Do it in the first minute, not the last. “I have tracked this for ten weeks — here is a one-page summary and a chart, and I have the detail if you want it” sets the tone for the whole appointment and buys you time that would otherwise go on reconstructing history out loud.

Then lead with function rather than physiology. “I can no longer stand long enough to cook a meal” lands harder than a bpm number, and it is the thing that actually needs to change. Have your one question ready, because appointments end faster than you expect and the thing you most wanted to ask is usually the thing you forget.

Finally, ask what they want more of. Some clinicians will ask for a specific measurement, a symptom count, or a different testing interval before the next visit. That is the best possible outcome from bringing a log: your tracking gets aimed at the question they are trying to answer.

This article is general information, not medical advice. A symptom log and a home stand test do not diagnose anything and do not replace medical assessment. Orsa is not a medical device and does not diagnose, treat, screen for or rule out any condition. If you faint, have chest pain or feel unwell, seek medical care.