From the other test results you just reported, you seem to be undergoing at least some degree of inflammatory process. That, combined with the idea that you're feeling symptoms beyond your arms, and that the cervical MRI did not show a definite spinal cord compression or foraminal narrowing/nerve root compression (lost of disc height and osteophytic--bone spur--formation in the spine is very common as we age) would probably indicate that some sort of cervical spine/nerve root problem is not a primary generator of the symptoms.

Your B12 level and folate level are a bit lower than most of us would be comfortable with, even if the range is "normal" (and a lot of us think the ranges, especailly for B12, are set too low in the US compared with Europe/Japan)--are you taking any kind of supplementation now?

I'm specifically wondering about that elevated ACE level--neurosarcoidosis, though rare, can present as granulomas of the nerve tissue even without presence in the respiratory tract:

http://neuromuscular.wustl.edu/antib...op.htm#sarcoid

Feel free to tell us all you are comfortable with (and you can use private messaging if there are things you don't want the "public" to see).