* Hyperthyroidism: This is a common condition in older cats that results in an overactive thyroid gland. Hyperthyroidism can cause a number of symptoms, including weight loss, increased appetite, and vomiting.
* Diabetes mellitus: This is another common condition in older cats that results in a deficiency of insulin, which is a hormone that helps the body use glucose for energy. Diabetes can cause a number of symptoms, including weight loss, increased appetite, and vomiting.
* Dental problems: Dental problems, such as broken teeth or gum disease, can cause pain and discomfort when eating, which can lead to decreased appetite and vomiting.
* Gastrointestinal problems: Gastrointestinal problems, such as inflammatory bowel disease or cancer, can cause vomiting, diarrhea, and abdominal pain.
* Pancreatitis: Pancreatitis is a condition that results in inflammation of the pancreas, which is a gland that helps the body digest food. Pancreatitis can cause a number of symptoms, including vomiting, diarrhea, and abdominal pain.
Behavioral problems
* Stress: Stress can cause a number of changes in a cat's behavior, including decreased appetite, increased appetite, and vomiting. Stress can be caused by a number of things, such as changes in routine, the introduction of a new pet, or a move.
* Boredom: Boredom can also lead to a number of changes in a cat's behavior, including decreased appetite, increased appetite, and vomiting. Boredom can be caused by a lack of stimulation, such as toys or play time.
If you are concerned about your cat's vomiting, it is important to take them to see a veterinarian to determine the cause.