My parents say it could be caffeine because I normally drink about a can of energy drink everyday or for the reason that I come in from college and stare into a computer/TV screen till I go to bed.
I am getting eye strain whenever I try to focus on something also.
What can it be?
Read article: Headache In Back Of Head And Neck With Dizziness
Neck Pain, Minor Headaches Almost Everyday In The Back Of Head