Hi. My 3 year old cat has been sneezing quite a bit for the last 9~ days now and just a week ago, he has recently been neutered. Ever since yesterday, he started vomiting all night and even today, hasn't eaten anything but he drank a good amount of water. Today, however, he has not drank or ate anything at all and he seems to just stay in one spot and very unresponsive. He also didn't have the energy to urinate into his litter box and just urinated right where he was resting, while he was laying there. I tried tempting him with all sorts of foods but he didn't even try to sniff it or even look at the food. Please help!