Totally relatable.  For me it was M.D.D. and Mixed Apnea episodes together each disorder compounding the effects of the other.  I could sleep for 16 hours and wake up tired.  Needed naps all the time.  Sometimes falling asleep while driving. Had trouble focusing and remembering enough at work that I lost my job as a developer.  Too tired to check my messages, answer calls, or do anything I used to do for fun. Took every pill, powder and potion I could get my hands on over the counter.  But I seemed fine.  Still on the tail end of that episode.