Although we're all familiar with the occasional headache, it can sometimes also indicate a serious problem like a brain tumor or meningitis, says Dr. Gruver. If your headache is accompanied by a fever, stiff neck, or vomiting or lasts an unusually long time (more than a few days), it should be investigated, she says.
Other symptoms that require medical attention: A sever headache that comes on suddenly; a headache accompanied by slurred speech, vision problems, trouble moving your arms and legs, loss of balance, confusion, or memory loss; a headache that gets worse over a 24-hour period; a headache that occurs with a head injury.
