Migraines are significantly worse than the average headache. Usually, they affect only one side of the head and cause a severe throbbing or pulsing pain. Migraines often cause extreme sensitivity to light and sound. In some cases, severe migraines prompt both nausea and vomiting. The worst migraines can last days and are so painful that the person experiencing the migraine is more or less incapable of performing most actions.

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