I think I know how you feel. I was diagnosed late last year. Before this I spent about 8 months totally bedridden. I had to leave my job as the work was too physical. So everything in my life came to a crashing halt.
The way I get through each day is to look at the whole thing as a new chapter in my life rather than something that has devastated it. So all the little things that interested me but I never had time to try, I can now do. Now I believe I hold the world record for having the most hobbies.
What symptoms do you have? Are you still in the band? What instrument do you play?