Severe Headache. A sudden, severe headache, which may be accompanied by vomiting, dizziness or altered consciousness, may indicate you’re having a stroke.
Seek immediate medical attention if you notice any signs or symptoms of a stroke, even if they seem to fluctuate or disappear. Call 911 or your local emergency number right away. Every minute counts. Don’t wait to see if symptoms go away. The longer a stroke goes untreated, the greater the potential for brain damage and disability.