I really feel for you. So many people here have no real diagnosis after tons of testing and probing. I too had one of those mysterious neuropathies that started in my head/eyes then went into my arms/wrist and then other parts of body. All testing was normal and I developed anxiety due to not knowing what the bloody heck was wrong with me.

If you can start taking vitamins as others mentioned this would be good. Don't exclude the fact that you may have had some sort of post viral/bacterial autoimmune attack on your nerves and its over now, but has damaged your nerves to some degree.

Also could be some sort of toxic exposure,that can trigger either a toxic or immune response or both.

Hang in there. You will get good support on this forum. Keep real good records of all testing you had done including results. Even within neurology there are subspecialties. I had to see 3 neuros before my diagnosis.