A free, private symptom-history tool

Capture what’s happening now, so you don’t have to reconstruct it later.

Answer a short series of plain-language questions. Leave with a clear timeline you can copy, print, save, or reference during a healthcare visit.

No account No diagnosis Nothing saved by us

Your answers stay in this browser tab. They are not sent to us or stored by this website.

How it works

A clearer account, built one question at a time.

Start with the first change

Record what you first noticed, when you noticed it, and what you were doing.

Walk forward

Add what changed next, including measurements, medications, and other actions.

Take the record with you

Copy it, print it, or use your browser’s print screen to save it as a PDF.

A narrow purpose

Not a symptom checker.

When Did It Start? does not suggest conditions, recommend treatment, or tell you where to seek care. Its job is simpler: help you preserve what happened, in what order, according to which source, and with what level of certainty.