I'd certainly go for a second opinion on that hand, esp. since they suggested surgery, which is a big no-no for RSD. Better be sure before surgery than after. Take it from someone who had all the signs and symptoms of RSD but who wasn't diagnosed before laparoscopic kneesurgery... I was diagnosed about a year after. My leg went totally purpleish/greyish/black after surgery, depending on how long I was held upright. All they could do was order me to "go back to bed". It didn't bode well for the RSD, on the contrary...

So be sure before you let them do surgery.