which doctor do i go to, please help

I have been fighting fibro for twelve years now, i take gabapentin 800 mg 2 times a day tramadol 50 mg two times a day. And extra strenght tylenol all inbetween. Im a in mind numbing pain and the doctors do not want to give me even a little stronger tramadol or something they just ignore me and now my colon has started to attach me i have to be wary of everything i eat glutens, soys, wheat, grains, corns, cornsyrup in what im drinking, no fried food no potatoes, if i eat the wrong thing, i feel the fever coming on. Rhuema. Dr or reg.phys