@gregoria Hello. I was diagnosed with small fiber neuropathy by a skin punch biopsy. I’ve been tested for other autoimmune diseases as my doctor is trying to find an underlying cause to the SFN. I was just tested for Sjögren’s syndrome (pending results) as it can cause SFN. Some of the symptoms you’re experiencing (dry eyes/mouth) are classic symptoms of Sjögren’s syndrome. If they can find the underlying cause to your SFN, they can treat that, which could potentially improve your SFN symptoms. I hope you find answers. ~Robyn