Hi there,
Did you find our TOS forum & the RSI subforum with it??
I had a similar dx {and many others }for a time then found out about thoracic outlet syndrome...aka TOS.
TOS forum links
http://neurotalk.psychcentral.com/forumdisplay.php?f=24
our useful links-
http://neurotalk.psychcentral.com/showthread.php?t=84