The real question is--where are you located?

We might be able to give you some idea of good places to go for further evaluation/testing and possible treatment if you let us know; there are specific medical centers and facilities that specialize in neuropathy.

Your nerve conduction studies and EMG are consistent with possible tarsal tunnel syndrome, but they are also consistent with a more systemic sensory neuropathy with distal "die back", meaning the longer nerve fibers, farther from the center of the body, are affected first. Have you had other work-ups for more systemic causes? Imaging of the lumbar spine area (which, given that you teach PE, makes me suspicious that you may have issues in that area)?

Not only should you visit our neuropathy forum here--lots of good information and advice:

http://neurotalk.psychcentral.com/forum20.html

You should also compare the work-up you have had so far with these listings. Neural symptoms form peripheral problems can be exactly mimicked by those of the spinal cord or nerve roots, so teasing out a cause is often long, costly, and very much process of elimination:

www.lizajane.org

http://www.questdiagnostics.com/test...ripheralNeurop