I wonder what a "dive bomber" signal. means..? never heard of that one..

I don't see anything major on the MRI report, but whiplash and the other Dxs you list can cause quite a bit of pain. Most of it is usually soft tissue caused pain.

[Bursitis both shoulders: January 2013
Rheumatoid Disease/Myofascial & Lumbar Pain Syndrome/facet disease: May 2013]

If the arm numbness is recent could it be any form of repetitive strain injury?
Sometimes after whiplash it can take a year for internal scarring /misalignments to show up as pain and symptoms..

I don't know how you feel about expert chiropractic or if you have read anything about upper cervical adjusting/NUCCA etc?
some info -
http://www.upcspine.com/default.asp
http://www.upcspine.com/self.htm
http://www.nucca.org/

and perhaps acupuncture might be helpful for over all health..