It may be caused by indigestion. If the cat eats too much miscellaneous food, it will cause vomiting and loss of appetite. It is best to observe the cat's vomit. If there are hairs in it, the cat may have hairball syndrome. Feline distemper can also cause not eating and vomiting. It is recommended to check whether the cat has a fever. Carefully observe whether the cat has diarrhea, its mental state, and whether its body temperature is abnormal. Generally, the normal body temperature of cats is 38-39 degrees.

Cats may also vomit when they suffer from gastroenteritis. The vomited items will contain foam or yellow water, and they may show poor energy and appetite.

If a cat doesn’t eat and vomits, it cannot be ruled out that it is a stress reaction. Cats’ stress reactions can be large or small. When a cat has a hot body (particularly obvious in its ears and paws), lack of energy, reduced appetite, hiding in a corner alone, or vomiting Diarrhea, constant howling, aggressive behavior, etc. are all manifestations of stress response. If the situation is serious and the cat has severe vomiting, diarrhea, hunger strike, convulsions, etc., it needs to be sent to the hospital for treatment in time.