I recently went to the doctor because I get a stabbing feeling in the back of my head a lot. Sometimes it lasts 15 minutes other times it lasts hours. I never get a fever but I do get lightheaded and very dizzy to the point that I cant see very straight. I get these headaches normally early in the afternoon (by 3pm im feeling it a little) and it becomes worse if I stay on the computer too long. The doctor told me I have cluster headaches but the problem is I have never had a migrane and i am 99.9% certain that what I have is not a migrane and I've been told that cluster headaches are worse than a migrane so I am beginning to question my doctors theory. Im not sure what is wrong with me but it is rather annoying. I become very dizzy and cant see straight at times and get sharp pains in my head. Have been feeling this way for about a month. What do you think can be wrong?