--the doctors should be looking for an inflammatory autoimmune condition first, though it is quite possible for small-fiber neuropathy to result from impaired glucose tolerance that has not yet reached "frank" diabetes.

Sarcoid can certainly result in peripheral neuropathy in many cases, as can any of the autoimmune vascular or connective tissue disorders--not just rheumatoid arthritis, but lupus, polyarteritis nodosa, Sjogren's syndrome . . .have you been titred up for the more specific SS antibodies that are often involved with the latter?

Take a look at:

http://neuromuscular.wustl.edu/antibody/pnimax.html

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