Can you die from neuropathy? like if it affects your autonomic nerves can it hinder your heart rate, breathing, and blood pressure to a point where it will kill you? i have it, but no cause has been found?

Yes, acute radiculo-neuropathy like Guillain-Barre can indeed kill you if not managed properly. Botulism, rabies, tetanus far worse but also potentially deadly. But, chronic and progressive polyneuropathy should be easily managed and not be severe, or cause your demise. ?"No cause"--get a Second or Third opinion!! There is always an answer, but sometimes takes expertise to find!