What are the symptoms of axon degeneration?

VARIES: Several peripheral neuropathies are considered "axonal" problems, and these include alcohol nutritional, diabetes, solvent poisoning, porphyria, amyloidosis, but small fibre axonal problems may be seen in sarcoid, sjogren's, lupus, paraproteinemias, celiac disease. Symptoms include pain, numbness, weakness, inability to discern hot/cold. Perhaps problems with balance.