FYI about what RSD/CRPS is. It's a rare syndrome that can happen through trauma from car accidents, work accidents, usually an injury to a limb. Your feet, you arms, hands,,,,I have type 2 which happened during foot surgery when three main nerves were severed in my foot. You have two nervous systems. Your main one is your brain and spinal cord. Your Sympathetic nervous system works everything else, all your internal organs, your heart, circulation, eye functions. Basically everything inside your body. When you have a trauma to the nerves it's the "flight or fight" gets turned on. Only problem is that it does not shut off. It's the highest injury/disease on the McGill pain scale. The pain appears to the injured person as being twice as painful as the normal person for the same injury. So I just had some dental work done. I also had a tooth pulled. I've had unbearable pain in my mouth, on the opposite side of where she pulled the tooth....My jaw all the way to my ear and inside my mouth is so painful I can not eat. If diagnosed early, which mine was not, they can treat it which could put it in to remission. I've had it five years since my surgery. When nerves die, your muscles follow. I can not stand for longer than a few minutes. I will eventually need a full leg brace so I can walk. My foot is paralyzed from the day I had the surgery. No, I did not get any compensation for the surgeons error. Most treatments are not covered by insurance.