I have been diagnosed with Small Fiber Polyneuropathy after 12 years of issues. I also have autonomic dysfunction that affects my digestive, heart and bladder. I take pregabalin and duloxitine for the neuropathy, heart and blood pressure meds for the heart issue (tachnycardia) and probiotics for my digestive issues with Reglan if needed for nausau. I have found this to be a very long road with many dead ends until I was finaly diagnosed after having autonomic testing in Boston by Dr. Peter Novak. I was told while I was there that Dr. Novak travels the world to find answers and best practices for autonomic neuropathy issues so I am one of his patients now. I have also been tested for several autoimmunes and everything under the sun with no clear answers.