I don't know if you have tried this already, but acupuncture and acupressure often give much relief to sufferers of fibromyalgia. It is no cure, but it relaxes the nerves.
I used to be a massage therapist with training in shiatsu (acupressure). When I had a client with fibromyalgia who could not tolerate getting a massage, I would first do some acupressure (often very light touch acupressure) along the nerve pathways where the pain was. In most cases, after the acupressure, the client could then tolerate a light massage. It was pretty amazing to see the difference. I highly recommend trying it.
Personally, when I was getting treatments myself, I preferred receiving acupuncture over acupressure. It reaches the nerve pathways more effectively and did a better job of relaxing them; or you could also say releasing them, since that's what it felt like. Like something was blocked and got released. I always felt like I was walking on air after acupuncture.
Hope this helps.