SymptomsBy Mayo Clinic Staff
Thunderclap headaches are dramatic. Symptoms include pain that:
- Strikes suddenly and severely — sometimes described as the worst headache ever experienced
- Peaks within 60 seconds
- Lasts anywhere between an hour and 10 days
- Can occur anywhere in the head, and may involve the neck or lower back
- Can be accompanied by nausea, vomiting or loss of consciousness
When to see a doctor
Seek immediate medical attention for any headache that comes on suddenly and severely.
March 25, 2015
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