My Dad has Fibromyalgia, along with a slipped disk in his back, and he does not work. Infact, he hasn't worked for coming up to 6 years. His back is in spasm every day, his sleeping patterns are all over the place- his life is a living hell most of the time.
Don't get me wrong, we have tried to look for work, however as we got to the Job Centre and the man there saw my dad couldn't even take his coat off on his own, is was an obvious answer to the question, "Do you think you'd be able to work?"
We have also tried looking over working at home, however the same problem still arises, and that is sleeping. I don't remember the last whole week he has slept the same times as I have. Work for him is an absolute no, and for good reason.