I was thinking she may have had a seizure. However, there is a huge connection between seizures and migraines.
I’m guessing there must be something in her background. She probably has a neurologist, and hopefully she talked to him.
“There is a connection between Migraines and epilepsy, but exactly what that connection is has yet to be fully understood.
No, Migraines are not a form of epilepsy or a seizure disorder. Migraine is an independent genetic neurological disease.”
http://www.healthcentral.com/migraine/h/silent-migraines-epilepsy.html