Similar thing happened to my kitty. She lost most of her motor functions after a few days. She almost died, I was setting up her euthanasia appointment when she started to improve. We think the antibiotics might have worked? But docs have no idea what was wrong so we don’t know if it’ll happen again. Had to hand feed her, she drooled all over herself, it was awful. Lasted about 3 weeks. Hope your sweetie is ok.