What cause the Migraine Aura itself?

I sometimes have an aura formerly the pain begin. The appearance of it varies. Sometimes flashing lights, sometimes looks approaching a shimmer or waterfall specifically hard to see through.
I experienced one this morning that be annoyingly large and long stable. Could see it even with my eyes closed. No other symptoms.
I took 2 aspirin and go back to sleep, woke up fine. Currently transport a beta blocker to prevent migraine, but have have a lot of own flesh and blood stress lately.

What causes this personal lantern show in my skipper??

Answers:

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Although the cause of a migraine is not fully unspoken, most sufferers probably have a genetic predisposition to them. About 80 percent of nation who have migraine headache have a house history of migraines.

It used to be thought that the aura and then headache in migraines be caused by blood vessel at first contracting and then expanding (dilating) in the brain. However, recent research suggests that migraine symptoms are cause by changes surrounded by the activity of neurones (nerve cell in the brain), and that change in blood vessel happen as a result of this. A chemical messenger surrounded by the brain - serotonin - is also thought to be involved in migraine.

This site is also good for info:
http://headaches.in the order of.com/od/migrainedi...