Log how you feel each day after a session and watch the line climb back toward normal. It is private, everything stays in your browser on this device, nothing is uploaded, and it quietly flags if the dip is lasting longer than a comedown should.
Private to this device, nothing is uploaded. Stored only in your browser.
Why track it
Seeing the curve helps in two ways: it reassures you that the flatness is temporary and lifting, and it makes it obvious if it is not, a low that drags past a week is worth taking seriously. Pair it with the recovery planner for what to do on each of those days.