Track for a question
Use a time audit to answer something specific, such as whether meetings are crowding out project work.
Keep categories broad
Too many categories create logging work and ambiguous distinctions.
Know when to stop
Once you have enough evidence to change the schedule, you can stop the experiment instead of treating tracking as permanent.
This site discusses planning and work habits, not medical treatment or diagnosis. Persistent attention, sleep, stress, or health concerns deserve support from a qualified adult or health professional rather than a productivity hack.