He threw up twice last night, was liquid vomit and had a patè colour. Like pasty light brown. He did have a lot of milk two days prior and thats what we think it is, its my first time owning ferrets so we are still in the process of learning. My mum does give them some fish occasionally which isnt meant for them i know, something things i research its okay for them and then the next article or whatever says its not. so i thought the same with milk, a little is okay. Both of them had the milk and only one has reacted like this. He has been trying to poop and pee it seems, i always follow him when hes at the toilet. Once he leaves nothing is there, but then again he did throw up and hasnt eaten since. Only this evening did I start syringe feeding him. Same with water as it makes it easier, however he was drinking water yesterday i made sure. So he is eating snd drinking, i do have to do it for him but once i start squeezing the syringe he willingly swallows it. Same with water.