What is a migraine?
A migraine isn’t just a bad headache. It’s an intense, throbbing pain. Some people also become nauseous and sensitive to light and sound. Many researchers agree that a migraine occurs when swollen blood vessels around the brain press on nearby nerves, causing pain. But it’s not clear what causes this to happen.
Migraines are not all the same. Most of them occur without warning. But some people do get early signs such as:
- Numbness or tingling in their lips, face, or hands
- Weakness in their arms or legs
- Difficulty focusing
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