mm,

Have you have any kind of sleep testing ? Bad days cognitively can be caused by poor sleep. Either poor cycling or poor breathing or a combination. For me, bad dreams were related to poor breathing during sleep. I had Central Sleep Apnea caused by neck/upper cervical inflammation.

Indomethacin (Indocin) messed me up cognitively. I got easily disoriented with it. I had to stop it.