You find some helpful info on our Thoracic outlet syndrome forum (TOS) for short.
It may or may not be the exact issues you are having , but we have many posts of therapy & various self care that could benefit you.
http://neurotalk.psychcentral.com/forum24.html
http://neurotalk.psychcentral.com/thread84.html
http://neurotalk.psychcentral.com/thread125577.html

and the search link in my siggy is helpful to find specific topics.