Dena.....
Run, don't walk to another doctor.
My hope for you is that it is not TOS. I'd love for you to report that it's a torn rotator cuff with a lot of swelling, you can have surgery to fix the problem, and get on with your life without our bright and smiling faces
BUT..........if that idiot doesn't even know what TOS is (which is evident from his claim that there is only pain in one position (doh !) than he is NOT QUALIFIED to say that you or do not have TOS.
I had the MD at my local pain clinic do the same thing to me......said it was not TOS because TOS patients only get pain in front of their collarbone, not in back where I feel it most.