That sucks! I don’t know what autoimmune disease Setzer has, but modern drugs can work miracles.
I have an autoimmune disease myself. There were times I could not play. Of course, it’s less of a tragedy when a hack can’t play. Some might even call it a blessing.
Modern medications have been a miracle in terms of my mobility and movement. Of course, there have been trade offs along the way, side effects. Fortunately, the drugs I’m on now work without much in the way of side effects. My quality of life is very good right now.