Have you had a comprehensive evaluation by an advanced physical therapist?
Also an expert chiropractor should do this same type of eval if you went in for these problems. just ask for an assessment/evaluation only...if you don't want any treatment at this time.
it would be good to take the MRI films or at least the report for the person to read before doing any testing.

The most thorough evaluations I had were by advanced PT persons (3 different ones), and my chiro, NO doctors I went to ever did the hands on/ in depth full assessment.

Basically a capable therapist can do certain tests with positions / pressure/ stretching to find out if the vertebra or c spine is actually causing the sx and to what degree.

Finding a highly skilled/advanced person that has more rounded knowledge overall will save you time and energy vs going to ones that may not be as knowledgeable.

a few videos to show evaluations for cervical & TOS
http://www.youtube.com/watch?v=vHQHrjMlOEU
http://www.youtube.com/watch?v=0FVvO...eature=related