[Also has one had a doctor state that any shoulder pain, pain of the Trapezius and Scalene muscles was related to TOS?]

I really think it can be also, unless there is another clear cause that is totally unrelated to TOS.
Like obvious things that would show on MRI - C spine vertebra/nerve/disk issues, tears or dislocations etc.

Especially if NTOS - the nerves send signals to the muscles , the muscles spasm & impinge the nerves more and can impinge on blood vessels too.... a nasty circle of symptoms..


Long ago there was someone in the military - maybe search the TOS forum for military ? I'll see if I can find some posts too.
I found one w/ quick search - http://neurotalk.psychcentral.com/post984310-3.html