I see this all the time in myself and people here or other drug subreddits. You may feel like you are sober because you don't feel the euphoria/reward, therefore you believe it's not working (much like benzo delusions of sobriety) and then write an essay about how stims no longer work on full detail.

I often only realize the meds were working/I was high (if I abused it) once I am sober. Like I felt relatively normal yet I was clearly hyper, focused or had a very short temper (in abuse sessions) for example.

Sometimes I feel normal yet time goes by very fast, and I am not even focused on anything in particular. I notice this through music, like I just put a song playing and all of a sudden I hear stuff that's like in almost in the middle of the song but in my mind only 5 seconds passed by.