@Inchindown - I wonder if you are looking for something you enjoy, that would have been a success back in your childhood - having a full belly.
If you have multiple conditions which you suggest have led to you giving upo most of your hobbies, did you grieve for the hobbies as they went? Have you tried to find other things that could replace what you have given up; whether in satisfaction of time spent?
I was been in the fortunate position about 15 years ago when, having sold a business, I could "retire". I decided I'd give it a go, but I was back to work within about 3 months, because I really felt the lack of structure in my day, and lack of punctuation regarding what sort of day it was (week day, weekend, holiday) a bit much to get my head around. I really felt if I didn't do something I'd drown in the sameness of it all could well start to develop unwanted and unhelpful behaviours. The littlest things started to mean a lot. So, I got myself a job.
My intention was the job was just to be a punctuation to the days, but being me, I get stuck right in and before I knew it I was back in a big job with big pressures and all that.
Next time that opportunity came around (about 5 years ago), I was much more ready for it, but it still took time to adjust to living in a different way. I still haven't "retired" and certainly don't use that word to describe myself (I'm still some way off state pension age), but I work differently now, in a way I have more control of. Sometimes I still miss the adrenalin rush and in a bonkers way, the pressure! The same stresses can be positives or negatives in a heartbeat.
I appreciate I have waffled on, but change - especially where it has been on a sort of drip-feed basis (or multiple diagnoses and giving things up) can sometimes appear unnoticed, when actually what we could do with doing in acknowledging it.
I wonder if any of that chimes with you at all?
If not, just indulge an old gurl waffling!