Observe her for a few days. Do a chart. When does she get these headaches? Any relationship between food, sleep, exercises or stress. Did you ask the doctor about giving her children's tylenol? it might be good to also schedule an eye exam. She might need glasses. If you don't like what the doctor says either go back and see that doctor or try to find another doctor. Be assertive and clear.Take the observation chart with you....Nursing degree