(((amy))) i'm so sorry, dear friend.
i hope you find answers... i remember my chiro talking about his issues, and even now if he goes more than a week without an adjustment he is bedridden.
i would keep trying, i know it's frustrating, but... massage therapy, accupuncture, naturopath...maybe one of those inversion tables? i know that helped my FIL's coworker who was in an accident and lived with constant pain.
these sorts of things, i think, are rarely "fixed" by allopathic medicine.