I have known several people who have had epilepsy, certainly blacking out and convulsing is common, but I have never known any of them to eat spiders or drink their own urine.
I worked at a behavioral health hospital. People drinking urine and eating bugs is not as unusual as you might think.
The mind is a wonderful machine. But when the wires get crossed, it does some weird stuff.
The girl was psychotic as well as epileptic it seems