A migraine is a type of headache. It can be throbbing or pulsing. It is usually worse on one side of the head. It may cause you to be very sensitive to light or sound. It may also hurt so much it causes nausea and vomiting. The pain may prevent or keep you from doing your everyday activities. The pain can last from four hours to several days if you do not get any treatment.

About 20 percent of people who suffer from migraines will have an aura around 20 minutes to an hour before the pain starts. This means that they may see flashing lights. They could see wavy lines or dots. They can have blurred vision or blind spots.

Sometimes people who get migraines notice a change in mood before their migraine starts. They may become excitable. They may feel irritable or depressed. And they could experience a funny taste or smell. They could also feel more tired or have muscle tension. This can happen up to 24 hours before the headache starts.

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