You may have the problems mentioned by the two previous posters.
The other possibility is a head cold, and sinus congestion in which case you will need to see a doctor for some antibiotics, or do steam inhalation, or get some nasal spray to decongest the sinuses.
If you feel you do not have any congestion, I suggest you get your eyes checked out due to eye strain. The other reason you are getting this is from using the computer for too long. Glaring at a screen can give you headaches and eye pains. Make sure you get enough sleep and limit your time on the computer.
Best wishes.
could be eye strain. go to your eye doctor. mmandy876
You might have a migraine headache. They can last for days even weeks.
See your doctor for pain medication. Meanwhile, make sure you take Calcium, CoQ10 and B vitamins. They help me with my migraine headaches. Also, an ice pack on the top of your head might help.