I have had TOS for 5 years or so, and I will tell you it has not been fun. I saw a neurologists, well I had seen about 6 or 7 until the last one finally did a thing called a droppler test, and then an artierogram ( I think that is how you spell it) which proved that I have it. I have a blockage on the right of 80% and 50% on the left side. (which is the flow of blood to my arms) I also have had surgery on my right side, which is a rib removal. It helped about 30 percent. There is nothting else the doctors can do for me. It is a depressing thought. The surgeon was a Thoracic, Cardiovascular doctor who performed the surgery, you will want one that is both. If you choose to do surgery, but first I would recommend that you see a neurologist first. I wish you the best of luck.