The US government just added Fibro to the list of conditions that qualify for SSI disability benefits!
Here is a link for Social Security's "DI 24515.076 Evaluation of Fibromyalgia (FM) SSR 12-2p"
https://secure.ssa.gov/poms.nsf/lnx/0424515061
I applied for SSI with fibro and was able to get it within 6 months. Been on it less than a year.
In uk you can.you won't get it for fibo But how the symptoms affect you and your life.it is important to explain your worst day and how much help you need or things you can't do what a healthy person would normally do.
This is awesome.