The nurse should response that a migraine headache is caused by vascular spasms.
Migraines are neurological disorder that's largely genetics based. Nerve cells within the brainstem are activated , due to various reasons like lack of sleep, food, water or emotional stress.
A migraine is a headache that can cause severe throbbing pain or a pulsing sensation, usually on one side of the head. It is often accompanied by nausea, vomiting and extreme sensitivity to light and sound.
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