What should be the next step to help my ulnar nerve pain?

I have been bouncing around from doctor to doctor and each seems to give me a different suggestion of what to do for the elbow pain I've been experiencing. My primary pain is around the olecrenon process and medial epicondyle. I've been experiencing tingling in my fourth and fifth digits as well as weakened grip (about a 50% reduction in strength). Recently, I have experienced random fasciculations. Bending the elbow up causes severe pain in the same area and I've started wearing a brace to hold my elbow straight at night. I've been doing physical therapy twice a week and my physical therapist beleives it is a problem with my ulnar nerve. I've had x-rays (normal) and an MRI (small joint effusion, everything else normal). I saw a doctor that was recommended to see about a cortisone shot, but that doctor didn't think a shot would help. I've also gone to an chiropractor who just made it hurt worse. It has been almost seven weeks since the injury first occurred, but no one seems to know exactly what to do with me. Right now I just want the pain to stop. Should I go see a neurologist or a orthopedist? Do I need a family doctor to recommend me? Is there a surgery that can help? Any suggestions would be greatly appriciated.