Can lack of sleep cause permanent nerve damage. i haven't slept properly for the past few years (6-7 hrs of sleep). now i speculate if i have this?

It is not feasible to provide a precise answer, as you do not indicate what you mean by "permanent nerve damage". Poor sleep habits can be deleterious, but can be reversed with a consistent sleep hygiene program. Your issues can be explored in more thorough detail and an approach can be commenced. Try virtual consult (www.connect@healthtap.com).

Six to 7 hours of sleep a day is not a serious sleep deprivation and would not cause permanent damage.Sleep hygiene: Visit this site for info on this topic https://www.cdc.gov/sleep/about_sleep/sleep_hygiene.html Wish you good health!