I don't think he's eaten anything whilst out, that's normally Cassie's role in life! Warning to those of weak stomachs!!! The sick was very liquid, brown, slimy and contained what looked like mushrooms (hope everyone's already had their dinner), and there was a tremendous amount of it. He's laying rather limply in his bed at the moment, curling his lip whenever Cassie tries to get him to play, which is not like him. Hopefully it is just a dicky tummy and not some sort of bug which will be picked up by Cassie and my Sister's dogs.
Good luck with Kaia tomorrow Sarah, let us know how you get on.