I have neuropathy for no real reason also. Do you have any nerve damage in your body? Or fibromyalgia? These are 2 possibilities of why I have. Have heard that if you have nerve damage anywhere in your body can cause neuropathy throughout. I have muscle/nerve damage in my lower right abdomen and nerve damage in my pelvis.
Have also been told that fibromyalgia (which I also have) can go hand in hand with neuropathy. Although I do know others with fibro that don't suffer from neuropathy.
Hope this helps a bit as I am newer to Mayo clinic chat.