Why do migraines cause nausea/vomiting?And why does the headache usually go away after throwing up?
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Migraines are not well understood, but it is thought that sensory overload and pain in the head can cause uneasiness in the stomach and potentially vomiting. This could also be why after hearing bad news you suddenly get a bad stomach ache but then it goes away once you’ve calmed down. Doesn’t happen to everyone, but I’ve experienced these and label them as anxious aches.
Similarly, it is not known why vomiting eases the pain of a migraine, but is is theorized that endorphins (natural painkillers) will rush out after vomiting and quell the pain.
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