The reasons why cats vomit and refuse to eat and are depressed: 1. There are parasites in cats that live in the gastrointestinal tract and can easily cause vomiting and diarrhea. 2. Cats may vomit after eating unclean or toxic substances, which may affect liver and kidney functions in severe cases. 3. Cats may suffer from other diseases, such as feline distemper, gastroenteritis, pancreatitis, etc. 4. Cat vomiting may also be due to hairball syndrome.

What to do if a cat vomits and refuses to eat and is depressed:

1. If the vomiting and diarrhea are caused by internal parasites, the owner needs to go to the pet hospital in time and use them rationally. Anthelmintics;

2. If the vomiting is caused by a digestive tract disease, you need to seek medical treatment in time to find the diseased area and then treat it symptomatically.

3. Poisoning causes the cat to vomit. In this case, the cat needs to be taken to the pet hospital for treatment as soon as possible.

4. Cat vomiting may be due to hairball syndrome. When a cat licks and cleans its fur, it will lick the hair into its belly, causing hairballs. Cats need to be fed cat grass or hair removal cream regularly.

5. It needs to be sent to the pet hospital immediately for treatment with intravenous electrolyte and nutrient solution.