Welcome Eskiemom. I had laser therapy done for a while - probably a half dozen treatments. Didn't seem to do anything (positive or negative) for me.

It is definitely hard to get a firm diagnosis for a lot of these type of disorders. The SFN in particular seems to be tough unless you get a positive skin biopsy. But a lot of times (like in my case) the doctors don't seem interested in even ordering the skin biopsy.

My symptoms are somewhat similar to yours, and I too have no firm diagnosis - just the general description of "Disturbance of skin sensation". Which, of course barely scratches the surface of the symptoms.

Keep up with a good diet, exercise to tolerance, supplements recommended for PN, and stress reduction to the extent you can. It may not cure you, but it's the best thing we can do until there is a diagnosis and identified cause that can be treated.