Cat Lethargic Not Eating Hiding. Allergic reactions, toxin consumption, gastritis, and kidney disease can also lead to a loss of appetite and cause vomiting. Other medical explanations include pancreatitis, respiratory.
Allergic reactions, toxin consumption, gastritis, and kidney disease can also lead to a loss of appetite and cause vomiting. You should be concerned if the white foamy substance in the vomit. A decrease in food intake for more than a couple of days.
