Grammadur, I am sorry this happened to you. Treated aggressively & quickly you have the possiblty of remission but there is no cure for RSD. I am sorry. I can understand being scared of blocks. They work really well for some people & do not work for others. I had 2 of them & they did not work for me. SO I had to have a Spinal Cord STimulator implanted last year. My RSD also started in my right upper body. Its now spread because of the stimulator surgery. But I have known people who had excellent results from blocks & thats why I tried them. I hope more people answer you. Its probably the neurontin that made you gain weight. It did it to me when I started on it to. You are correct it took me over a year to get a correct dx. And I saw some mean doctors until I found my current team. I am glad you didnt have to go through all of that. I hope you continue to get good treatment & maybe you can go into remission. Its a possiblilty if you get treated early. Good luck.
Hugs, Denny