PLEASE TELL ME IT ISNT deadly!?!

Best Answer - Chosen by Voters

Alright first off, have you done anything to injure yourself? That might be the cause.
If you haven't, and it has been lasting for a couple of days, please, head to the hospital before it gets any worse. It is the HEAD you are talking about.

Good luck :)

Who knows? It could be from an insect bite, a ruptured capillary... but it's pretty obvious you should get it checked out, and the simplest way is to hit the emergency room of the nearest hospital. Whatever it is, it's not usual or normal.

Could be many things including your back out of alignment. Either get checked by a doctor of medicine or a chiropractor.

Type your symtoms up in google and it will tell you just type in whats wrong withyou and all solutions will apear.
Maybe you hit your head?