Woke up at 2am to hear the cat fall off the side of the bed. Switched on the light and he was walking aimlessly in circles, massively dilated pupils, and he wouldn't respond to anything. Cue a rush to the vets 30 miles away where we took him out of the car to find him almost back to normal.
Vet isn't sure what the problem might be but gave him a steroid injection and antibiotics, and so far (fingers crossed) he seems to have recovered. This morning he's very quiet, but still seems to know us and where he lives.
Anyone seen this before? Vet suggests inner ear infection or small stoke.