Tourettes may account for her outrageous, abusive and obscene outbursts over the years, but yeah, that looked like an absence (petit mal) seizure.
http://www.hopkinsmedicine.org/neurology_neurosurgery/centers_clinics/epilepsy/seizures/types/absence-petit-mal-seizures.html
She’s been press-shy, this may be why. Let’s see how she does next week and in the debates.
It isn’t an absence seizure because she didn’t stare into space like a zombie for a bit, and it can’t be a petit mall because she didn’t fall or lose consciousness. But it was a series of myoclonic jerks, and I truly would believe a seizure, and a recurring one I’d guess because her handlers seemed to be familiar with it.