We have a Thoracic outlet syndrome forum with sticky thread full of info about TOS & RSI's I would suggest checking these out to see if anything fits -
The info should also help you sort out if PTs or MDs are doing what is best for you.. knowledge ...
http://neurotalk.psychcentral.com/thread84.html
http://neurotalk.psychcentral.com/thread125577.html
MD's are often not fully up on of TOS or myofasical syndromes....
Advanced PT might be helpful, avoid rookie PT....