She was fine yesterday, though her stools were a little soft. This morning she threw up at 4am. When I took her outside, she had the "runs". This morning she's been very listless. She chewed up some of her crate carpet, but I can't imagine that would make her this sick. I got her to eat a little chicken a while ago, but she won't drink any water. She's just laying on her dog bed looking pitiful. Someone told me to look at her eyes, and the pupils do seem a little dialated, but not fully. And it's not that bright yet this morning. Is there anything else I can do? When should I start worrying and take her to the vet?