Yesterday we came home from taking my son to the airport and Ozzy was fine. As the day went on he didn't drink or eat anything, he had diahrea, and was throwing up. He became more and more lifeless. He slept all day. We thought he might have been sick from a treat I gave him because he is so small. He is only 6 1/2 weeks old and only weighs 13 oz. This morning I got up to take our other chi, Tinkerbell, and Ozzy out to go potty. He couldn't hold his head up and could barely stand. We took him to the vet and she did a parvo test on him and it came out negative so she is thinking it might be hydrocephalus. I'm trying to think of a way to let my lilltle boy know. He is away at camp for 3 weeks and I don't want to tell him while he is at camp. The vet is suppose to call and let us know how he is doing tonight. She has him on antibiotics and fluids. She also said that he was a little cool when we brought him in. I'm really scared and don't want to have to tell my son we had to put his puppy to sleep while he was gone. If anybody has any suggestions please let me know. And please say a prayer for Ozzy.