I'm newly registered to the group but have been reading for a while. I have a grey and white 12 week old kitten named Nepheline who I got from the Humane Society 4 weeks ago. She has sneezed since I got her but both times I've had her at the vet, there were no other symptoms of anything. Two days ago I noticed that she was sleeping more than usual and yesterday she was very lethargic, hot the the touch and not eating. She doesn't have any eye or nose discharge that I can see. Maybe a tiny bit around the nose. I took her to the vet and they kept her for 5 hours, gave her subcutaneous fluids and anti-inflammatories. My vet thinks that she has an upper respiratory infection. She heard "something" in her chest. She was tested for feline leukemia and FIV and both tests were negative. She came home feeling much better and was moving around a bit and more aware. I have to give her antibiotics for the next two weeks. Now, 4 in the morning, she is lethargic again, feels hot and her breathing is louder than normal. Plus I can't get her to eat anything. I'm really worried about her. I've called the after-hours vet and am taking her in again in the morning. I don't know how to deal with this, I'm really upset. I'm really afraid that she is not going to make it. The vet said that she doesn't know for sure that it is an URI. What if it is something worse? Has anyone had experience with URI's that they could tell me about? What about other possibilities? The only other thing I can think of is FIP. How are the symptoms different? Thanks so much for your help.