Hi welcome to the health care magic Here cause has to be searched for headache Your blood pressure should be measured Irregular meal, fasting, stress, smoking, Otological ear infection like cause history should be ruled out If headache unilateral and throbbing nature than strong possibility of migraine For which rizatriptan like drug prescribed... Avoid stress and direct sun light exposure If blood pressure high than specific drug instituted for that If fever present than meningitis has to be ruled out So without delay consult physician and physician will elicit above history and will examine you for prescribing proper medication Take care