Have you seen a gastroenterologist? You could have esophageal issues causing peripheral neuropathy. I have nutcracker esophagus, esophagitis eosinophilic and gastroparesis due to spinal injuries starting at age 1 and just now figuring it out, I am 49. The nutcracker and gastroparesis are motility diseases. I don't expect you to have nutcracker, it's very rare and very painful but you may want to look up the others.