My friend's eye twitches uncontrollably..why?

Question

Its only one eye. Its the lower eye part. where people get baggy eyes and stuff.

Answer 1

There are several types of nerve problems that can cause that, some serious and many not.  Yes, it should be looked at by a professional.

Answer 2

not enough sleep. (for both bags and twitches)

switchin from hot to cold instantly. (twitches)

too much caffine.. like coke and other stuff (twitches)

Answer 3

stress