Nausea can occur in dogs and cats for many reasons, particularly when the digestive tract and nervous systems are out of balance. The following situations can cause nausea and vomiting in pets:
- Stress resulting from veterinary visits, car accidents, being left in a hot car
- Movement and travel in a car, plane, crate, or carrier
- Gastrointestinal parasites, viral or bacterial infections, and dietary indiscretion (swallowing garbage or foreign bodies).
- Disease of the liver, pancreas, kidneys, and stomach/intestines
- Heartworms (which can also cause coughing and exercise intolerance)
- Various toxins and poisons, if ingested
Symptoms of pet nausea include panting, drooling, trembling, swallowing, restlessness, lip licking, retching, vomiting, and anxiety. Behaviorally, nauseous pets may show signs of anxiety, stress, vocalization, nervousness, and/or hyperactivity.