Suggestions for pain relief please?

Hit by drunk driver 20 years ago resulting in wedge fracture of neck, two prolapsed discs and now arthritis in neck and back. Also one prolapsed disc in lower back and fibromyalgia. My doctor has advised staying off the pain killers I've been taking for many years and I agree as they don't work any more they're more of a crutch. Had Physio including traction which was great while on the machine but when everything settled back into place the pain returned. Had Accupuncture, that didn't work. Practice the exercises from Physio daily and try to keep mobile and build muscles around back and neck with walking. The pain is increasing at an alarming rate and my hands are cramping making me drop things, also my left arm often feels cold and weak although is warm to the touch. My doctor is at a loss to sugest anything else and I am getting realy down because of the constant pain and the restrictions it causes. Anyone have any sugestions for exercises or relaxation techniques?