Thank You for the response Dr. Corenman,
Neck position does not effect my pain. As a matter of fact, I don’t have any neck pain (maybe a little stiffness) and I thought the Orthopedic Surgeon was wasting my time when he ordered the neck MRI.
Of the two syndromes, I think it may be the Thoracic Outlet syndrome. I did not mention that the motion that gives me the most pain is putting on a bra where I make all of the motions in a series that your description mentions as being troublesome.
I really appreciate your help!