Gabapentin is generally quite safe. It does not directly cause pancreatitis, but I m not certain of the risk is truly zero and I am not sure of its interaction with previous pancreatitis. Several other treatments can be used. Amitryptiline is quite cheap and stronger than cymbalta which is an inferior knock off. muscle relaxants might do something. But predominantly, changing the pain threshold is the direct treatment for fibromyalgia. A lack of pain, an increase sensitivity to it from depression (common) or a lot of drug use (actually rare except with suboxone treatment) set up for fibromyalgia. Frankly I wonder about getting increased sensitivity to the system by taking a narcotic blocker for a long time. Alternatively. increasing pain tolerance by massive exercise is what has been found most effective.