What kind of work do you do?
That could be related to worsening sx.

No thinners given?
And it could be that the 2 separate things need to get done. the SC fixed, and then the resection.. if testing shows to be the compressing issue.

I think they can also do a doppler?? sonogram type test where you move arms to positions and it will show the stoppage of bloodflow if that is the case..
I didn't have this test but maybe others will explain it better..

Are you getting any expert PT for the rock hard traps?
could be triggerpoints as well a spasms - those can cause a lot of problems also.