Many causes can cause headaches and most headaches will heal on their own; however, some headaches should not be treated carelessly and should be dealt with promptly. What kind of vomiting requires urgent medical attention? The following situations indicate a serious condition and should be seen by a doctor. 1. Sudden onset of severe headache that is unusually uncomfortable. 2.Headache with fever. 3.Headache with mental confusion or delirium. 4.Pain after head trauma. 5.Sudden onset of headache in people over 60 years old. 6.Recurrent headache in children. 7.Headache affects daily life. 8.Headache with double vision. 9.Headache has been a long time, but recently the nature and form of headache has changed. 10.Headache is obviously aggravated after coughing, relieving stool or bending over, or the headache is related to the change of body position. 11.Headache with nausea, vomiting, and loss of strength. 12.Headache wakes up during sleep with pain. 13.Headache accompanied by obvious increase in blood pressure. 14.Headache accompanied by poor movement of hands and feet or feeling numb.