A sudden increase or decrease in appetite can be a sign of illness. If your cat is not eating or is eating significantly more than usual, it may indicate an underlying issue.
Changes in your cat's weight that are not due to intentional changes in diet or activity levels can be a cause for concern. Unexplained weight loss or gain may indicate various health problems.
An increase or decrease in water intake can be indicative of certain health issues, including kidney disease or diabetes. Monitor your cat's water bowl for changes in consumption.
Changes in litter box habits, such as difficulty urinating, increased frequency of urination, or diarrhea, may be signs of various health issues, including urinary tract problems or gastrointestinal disorders.
Occasional vomiting or diarrhea may not be unusual, but persistent or severe episodes can be indicative of underlying health problems, such as infections or gastrointestinal issues.
If your cat is suddenly more lethargic, hiding, or displaying aggressive behavior, it may be a sign of discomfort or illness. Cats often withdraw when they're not feeling well.
A decrease in grooming or overgrooming can both be signs of illness. Pay attention to the condition of your cat's coat, as changes may indicate skin problems or other health issues.
Labored breathing, wheezing, coughing, or any signs of respiratory distress should be addressed promptly, as they may indicate respiratory problems or other underlying health issues.