Welcome!!

It sounds like you would benefit from a full work up for various possible causes of your neuropathy...to include autoimmune disease. Your symptoms can be associated with Sjogren's and there is a relation with this condition and SFN.

But it might be beneficial to confirm the SFN diagnosis with a skin biopsy. In the meantime, various blood tests for autoimmune disease can be done. I would also suggest having your B12 checked and blood glucose tolerance test.

Not looking for a cause limits your best treatment options. So if your neurologist is not interested in exploring possible causes, then I would start with finding a new neurologist.

There are several supplements that can also be helpful and the 'stickies' at the top of the forum will provide more information. But again, best to find out exactly what is going on first...and why, then begin a process finding the appropriate supplements and treatment.