I have non-diabetic small fiber neuropathy w/ autonomic dysfunction. Last year I had disturbing gastrointestinal issues after eating with spasms, pain and nausea, and I found out from my GI Doc that I have delayed gastric emptying. My G.I. symptoms have subsided somewhat however, I still suffer from extreme fatigue, lightheadedness and difficulty walking and I wanted to know if anyone has tried low-dose naltrexone to manage their neuropathy pain and other autonomic symptoms? Thx!