A member asked:

What happens inside your skull when you have a migraine?

A doctor has provided 1 answer

Controversy: Based on research, the best understanding we now have is that migraine arises from abnormally excitable neurons in the brain and trigeminal nerve. It is also thought that it was thought that the blood vessels on the surface of your brain dilate, and with each heartbeat, the blood surging through throws the dilated blood vessel wall up against your skull, resulting in that throbbing pounding pain.

Answered 4/6/2013

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