Sorry ladies, me blinking internet went wrong.
Very nice emergency vet gave him some short-acting steroid and an antibiotic, waiting today and then off to our usual vets tomorrow if I can make it.
Ollie's still hanging on but to be honest I'm starting to think he's had enough. He's not interested in food or drink at all, he's still happy to be cuddled but he hasn't said anything properly to me for a few days now.
So off to nice uncle Simon tomorrow and we'll see what he thinks.
PDSA are covering the emergency bill, I think, otherwise it'll have to go on a credit card.