Gosh, I'm so sorry to hear about your kitties' seizure! My kitty, Elvis has had seizures for about 5 years now. His first one was very catastrophic, but we can now control them with Phenobarb. We don't know what causes them, but he hasn't had a seizure in over 2 years! One of the tricks I learned was to watch for a couple of signs and sometimes I could keep him from going into one. Here are a couple of things to look for:

1. Head shy.....like he's afraid of your hand.
2. Light sensitivity.
3. Won't eat.
4. Generally acting weird.

If I noticed any of these things, I would put him in a quiet, dark room and sometimes he would come out of it. Sometimes, he'd have to get some medicine.

Please let us know what your vet says.