That is not a seizure.
Glad I don’t go to you for diagnosis.
This was posted by a fellow freeper.
Wife is a neurologist and definitely thinks it was a seizure. An absence seizure. During these type of spells, patients can have automatisms (such as stereotype head jerking, or picking at things in the air) and brief lapses in awareness.
In an adult, absence seizures may result from brain pathology (such as strokes, head trauma, or tumors).”