I was in an exactly the same situation as you, until I phoned one of my sons, aged 65. As I started to bring him up to date on my condition, he interrupted my conversation, saying “ sorry dad, I didn’t want to worry you but, I have just been diagnosed , that I also have peripheral neuropathy “. So , there you are, my cause and his is hereditary. After much research I have opted for treatment via Neuroplasticity. I am now aged 90, on nil medication of any form, and my condition IS improving on a weekly basis. I am not just looking improvement , but a CURE. My Specialist Neurologist said, of cure,” it is possible, but will be extremely hard work to achieve “. I’ll settle for that. Best wishes from Australia.