Symptom guide
Headache
Pain or pressure in the head, face, or neck.
Important: Some warning signs listed below can be emergencies. Get urgent help immediately if they are present.
About this symptom
Headaches are common and can be linked to tension, dehydration, illness, sleep changes, and migraine. A sudden or unusual headache needs attention.
Common causes
- Tension or stress
- Dehydration or skipped meals
- Migraine
- Viral illness or sinus congestion
Gentle self-care
- Rest in a quiet, dim room if that feels helpful.
- Drink water and have a regular meal if you have not eaten.
- Take breaks from screens and gently stretch the neck and shoulders.
When to seek medical care
- A sudden, severe worst-ever headache, especially with weakness or confusion.
- Headache after a significant head injury.
- Headache with fever, stiff neck, vision changes, or new neurological symptoms.