I have Neuropathy and fibromyalgia. When my Neurologist put me on Neurontin for the Neuropathy almost all my fibromyalgia
disappeared too, since the Neuropathy is from the waist down if I start aching all over I take another Neurontin (600 mg at a time), up to 3 a day. It is expensive but gabapentin is the generic if it will work for you. I did not work for me.
I spent many many miserable years in pain.