Oh man, I am sorry to hear this. I'm feeling for you.My wife told me a on Saturday that my kitten PK was throwing up water and lethargic, and when I got home yesterday, it was worse than she described. I mixed up some amoxicillin into a solution and gave him two doses yesterday and one this morning, and he’s pretty much unresponsive now. I had intended to take him to the vet this morning, but I’m pretty sure I would end up paying at least a couple hundred bucks for them to tell me he’s not going to make it. I’ve put down ALOT of dogs, cats, cows, and even a couple horses, but it’s going to be tough to put down my little buddy. It hurts my heart to see him suffer though.