Do the drs think your symptoms match up with the findings?

Have you had any PT to see if there is any improvement?
PTs can also do an assessment/evaluation if the drs haven't done any comprehensive 'hands on" assessment.

I'm asking because the symptoms sound so much like Thoracic outlet syndrome.. TOS for short.
Sometimes if you've had a whiplash type injury, long time desk or repetitive motion job, poor upper body posture with forward head/forward shoulders, TOS can occur. We've had weight lifters/other sports people with TOS also.

TOS is often due to the brachial plexus area being crowded and closed down, pinching on nerves and blood flow to the arms.
Here is our TOS forum if you want to read more about it -
http://neurotalk.psychcentral.com/forum24.html