I might have waited 48 hours to see if he got any better, before taking him in. But he scared me because he was just laying on the ground refusing to move. I've never seen him so lethargic. And the fact that he threw up his food, got it all out of his system, but kept on throwing up saliva and bile had me scared too. He's feeling better now. He threw up one more time, but he's on rice and boiled chicken now and he's getting his energy back.