A sudden increase or decrease in appetite can be a sign of illness. If your cat is eating significantly less or more than usual, it may be cause for concern.
Significant weight loss or gain without a clear reason (such as a change in diet) can indicate a health issue.
If your cat is unusually lethargic, less active, or seems to lack interest in things they used to enjoy, it could be a sign of illness.
Pay attention to your cat's litter box behavior. Straining to urinate, frequent trips to the litter box, or changes in stool consistency can signal health problems.
Occasional vomiting may not be unusual for cats, but if it becomes frequent or is accompanied by other concerning symptoms, it's a reason for a vet visit.
Persistent coughing, sneezing, or nasal discharge may indicate respiratory issues or allergies.
If your cat is grooming excessively or neglecting their grooming routine, it could be a sign of discomfort or illness.
Look for unusual behavior like hiding, aggression, excessive vocalization, or changes in social interactions with other pets or humans.