One of our cats, charlie, hasn't been quite right for a while. Nothing definitive, just wasn't himself. We took him to the vets last tuesday, and had him looked at. He got a couple of injections and picked up for a couple of days. We took him back tonight and they did some bloods. He has a high lymphasite(or something like that) count, and 1 of the chemicals for kidney function was up too. The Vets said that for a normal infaction, one of the other white cell types goes up, but this was ok, so it's not a normal infection apparently. He's also dehydrated so they have kept him in on a drip, and have done some more bloods, which should have some more details. Here's hoping he's alright.

Google has some depressing information, but we will just have to wait and see.