Sorry for the basic question, but how do you actually start one of these diaries?

How long before you can reasonably say something is or is not doing anything?

A privacy service registered three months ago on a domain claiming twenty years of trading is a contradiction.

Worth asking what specifically was measured. Pain scores move with mood and function does not.

You have two changes at once here. You cannot attribute anything until one of them moves.

File early.

Loose evidence and no evidence are different, and people overcorrect in both directions. Not on iron bisglycinate but the pattern is familiar.