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 for anywhere between an hour to 10 days
- Can occur anywhere in the head or neck
- Can be accompanied by nausea or vomiting
When to see a doctor
Seek immediate medical attention for any headache that comes on suddenly and severely.