Same.
Fibromyalgia, Rheumatoid Arthritis, CFS, and all that goes with it.
It's getting for 18 years since my last band, and I'm still dreaming about gigs we played/wanted to play every night.
I just do what I can, when I can. My calluses are gone. Not enough playing. A lot of the time I'm just too tired to concentrate. (Must be all them nocturnal gigs, eh ? )
As I got worse, I stopped being able to get out and about and haven't seen anyone from any band I've played with for years. Basschat helps a lot, but there's no substitute for a good gig.
Keep at it as long as you can, but don't overdo it.
Take care.