Hello! I am taking care of a pair of 5 week old brothers that have been with me for 5 days. Today one of the kittens has been vomiting. He did it 4 times this afternoon in about an hour and then again at around 1:45 am after I put them back in their "safe room". It looks just like runny wet food (which they've been eating, Nutro Max kitten) but has an AWFUL smell to it. I took both kitties to the vet and they said that he isn't dehydrated and gave him a shot of anti-nausea meds. Tonight he was screaming because he was so hungry and since he was acting normal (the same as his bro who is not vomiting) I gave him some dinner, then he got into my adult cat's 96% Merrick BG chicken canned food but I found himn so he didn't eat much. Do you think he's just over-eating and his tummy can't handle it? He is drinking water and using the box but they both had diarrhea from being weaned to kitten food. I was also given something for the diarrhea that he can take once he feels better.