I don't have advice--beyond contacting the vet--but I have had a couple cats in the past who had seizures and can tell you my experience. The pattern you saw in Ravan sounds similar: usually I would see the seizure itself, a few minutes kind of zoned out and maybe dog-paddling movements, a half hour or so of anxiousness but not seeming fully present, then tired out for a few hours.
In the first kitty, who had many seizures, they found in her workup that she'd probably had a head injury at some point before I had her, and speculated that that predisposed her to seizures which turned up as her kidney disease became advanced. I took her to a specialist at the vet school to look for a brain tumor, which she didn't have. I don't remember the vets offering treatment at that time beyond subQ fluids to dilute the toxins from her kidney disease, and advising me to
loosely restrain her during them so she didn't knock into things and hurt herself. She seemed her normal self except for that period during and after the seizures, but they grew closer and eventually came less than every eight hours apart, leaving very little time in between when she was herself.
More recently, I had a kitty who had a seizure with the same pattern; i.e., taking several hours to seem normal. I took her to the vet and they did rather less of a workup and ended up recommending I wait and see. She seemed normal afterward, then about four months later I saw her have a smaller seizure. The zoned-out and the restless phases lasted less than a half hour altogether, and then she seemed herself and I never saw it happen again. I suppose, though, if they got overwith as quickly as that second one, she could've had more that I missed. Still, she was 14 when she had those two seizures, and she lived to be almost 19 with no other sign of them.
My understanding is that seizures are more disturbing to witness than to experience. I hope that's true. I suspect you're more traumatized than Ravan is; perhaps when he seems frightened he's disoriented. It does sound like vets have more tricks up their sleeves nowadays to treat seizures, if Ravan does turn out to have more of them or if the vet finds there's an underlying cause.
Hugs for you both.

