He threw up everything he ate this afternoon. Now tonight, he threw up again but it was just clear liquid. He's been sleeping all this evening. He has also been "stretching" his neck out tonight a few times. This morning he was fine...playing ...eating. I just haven't seen him act like this before. He was on a soft diet this week post neuter, but the vet said he could be put back on his regular diet by this weekend. Anyone have any suggestions? I don't want to get alarmed but the thing I don't like is him craneing his neck.