Chronic pain most often requires a multi-modal approach--something a lot of harried physicians won't be well versed in (unless it is a personal interest). I've found that particularly true among male physicians who consider anything but drug therapy--including acupuncture (especially helpful for fibromyalgia, I might add), laser and "cold laser" (infrared), tens units, bioelectric, surgical implants, physical therapy rehabilitation targeted exercise, mind-body link interventions, dietary interventions, alternative pain medication management (non-oral), EMG feedback and hypnosis, rebound neurologic pain medication interventions (not only gabapentin and amantadine but others as well), trigger point injections, shockwave therapy, pulsed signal therapy (magnetic wave), neuropsychological medications, and on and on. If your uncooperative physician can at least do a reasonable work up to diagnose the source of your pain, it would help, but if they give you a blank face, research what pain clinics are available in your area and ask for the referral.
Oh, and note not once did any of the above include opioid medications, which, of course must be reserved for the most rare intractable pain today. Perhaps a that assumption is likewise causing your physician to be uncooperative.