I just looked at your list and it was really helpful. I am in the process of looking for a diagnosis. i just went to the university of mich. hospital for some test and will meet with a vascular surgeon next week. I am frustrated because i have had so mant test: emg mri, x-rays, dopplers and they always come back normal with the exception of one of the dopplers. I am convinced that it is tos because everything else has been ruled out some i am hoping this appointment next week will confirm it or point me in the right direction. My question is that my biggest complaint is pain and burning and muscle tightness. especially in the arm, but everything i read seems to talk about numbness and problems with the pinky and ring finger which i dont have. Any thoughts?