Have you ever gone to a fibromyalgia specialist? I know someone that did, and they received IVs twice a week with a mixture of vitamins in it, certain shots, and natural supplements. They are doing much better now. My daughter was told a few days ago (15 year old daughter) that she has fibromyalgia, but we're not able to go this route because of the cost, and a lot of insurance companies don't cover it.
May be one of the fibromyalgia clinics would help that are set up with a regimen like our friend went to would help. Plus, maybe their cost for the treatment by you hopefully would be more reasonable.
Praying for you. God bless you.