My late-teens cat Soldier, an owner-surrender I adopted from a rescue a couple of years ago, just had another seizure, a strong one that lasted several minutes.
The trigger seems to have been my feet as I stepped past him; there’s something about feet moving by him that sets him off occasionally, though normally he just twitches a bit. This evening, though, it was full-blown seizure: flailing legs, writhing, shuddering body thrashing across the floor; eyes wide but unseeing. He crashed into a door and I draped a towel over him, tried to hold him there, talked soothingly, and carefully stroked him through the cloth. It stopped the wild progress across the floor but otherwise didn’t reach him.
When Soldier seemed to calm somewhat, stopped the strong shuddering and thrashing, though still trembling, I lifted the towel off him, still talking and stroking, but he started flailing again, wound up dangerously near the top of some stairs, so I redraped him and stayed with him, talking softly and stroking, till he settled down. This time when I took off the towel he stayed put on his belly, unresponsive to me but no longer seizing.
After a few more minutes he sat up but otherwise stayed put, staring wide-eyed into a corner, still not seeming to react to me. He then let out several very loud low-pitched yowls, which gradually diminished in volume and force as I continued to soothe him. When I was sure the seizure wasn’t coming back I left him to finish recovering, still faced into the corner.
This is only the second major seizure I’ve observed in the couple of years I’ve had him, although I do hear loud yowls from him once in a while, out of my sight, so perhaps he’s had others unobserved.
I took Soldier to the vet after his first seizure but by the time he was seen he was back to normal, and an exam turned up nothing significant.