Did you take any medications for it? are you also taking MAOIs, diuretics, high blood pressure meds. how old are you? I would suggest getting off the computer, lay down a dark or dim lighted room, head on bed with 2 pilllows, ask your mom for Tylenol

Pay attention to what might have caused it, where it hurts (one side, on top of head) foods you ate, any signs just before it happened, how much you sleep, and your stress level