Definitely get a 2nd opinion. I have Fibromyalgia but know there is more going on than just that but according to my rheumi he too does not know. I am not on any medications but here's what I do for myself:
try to eat healthily - I take in no more than 1400 calories a day usually am under by a few hundred daily, I do eat whole foods.
exercise no matter how horrible I feel - yesterday I got in two hours of exercise and I do what I can handle constantly fighting through the pain.
I allow myself to sit down and take breaks as needed.
I am on iron, B12, and vitamin D. I also take Klonopin to help with my insomnia.
I use heat and cold to help manage swelling. I am personally immune to most typical narcotics and the concoction I have to take to help eliminate even a little of pain is not recommended.
I do yoga and meditation. I also write and cook for fun.