Teddy threw up. What happened?

Teddy vomited, generally divided into two cases, one is physical, one is pathological. The physiological situation is: Teddy eats too much, eats too fast or eats the wrong thing, which will cause Teddy to vomit. The pathological situation is: Teddy has an infectious disease, and even liver and kidney problems, which will cause Teddy to vomit.