My consultant described Fibro as the brain being similar to a hard drive and it crashes.Then as it reboots the pain receptors have short circuited which means they cannot regulate your pain.
My thoughts are therefore;could hypnotherapy override the pain receptors?
I had about 6 sessions and it worked wonders!! It helps with daily and long term stresses that in turn cause pain. It doesn't help with weather related pain however.
GREAT QUESTION. I MUST RESEARCH!!