You asked for things you haven't tried yet....biofeedback and meditation. With both, you will still have pain, but you can control your response to it so it doesn't ruin your life. I learned biofeedback from a pain therapist (he was also my health psychology professor). It was a computer program that we learned to adjust our biorhythms with. Very cool. One of his patients who was in chronic, uncontrollable, suicidal type pain is now able to have a life again.