Hi Carla, welcome to the Forum. I'm sorry this is happening to you.
So your Dr has sent you for tests (EMG's etc.) what were the results of the tests? Odds are this Dr has no clue on how to treat TOS - is he the one who diagnossed you? If you still have pain and PT has not helped (caution: most PT can make it worse!!) he should be referring you to a Dr who can adequately treat your pain and get you the right PT to help get you back to some level of functioning.
Do you have the extra ribs? Was there an accident/injury to cause this? We will need some more details to guide you. I'm sure others will have LOADS of helpful info for you. Do search this forum - you will learn a lot.
Anne