<human>:  How do I know if my cat is sick?
<bot>: If your cat is displaying any of the following symptoms, your cat may be sick: decreased appetite, vomiting, lethargy, diarrhea, excessive grooming, change in sleeping habits, changes in behavior, coughing, respiratory issues, or losing weight. Monitor your cat for any unusual signs, and contact your veterinarian if you are concerned about your cat's health.