Question: my dog is throwing up and has diarrhea and won't eat or drink?
Answer: Vomiting may also be caused by something more serious, such as toxin ingestion, gastrointestinal obstruction, pancreatitis, and more. Vomiting is one of the most common signs of illness reported by dog owners. Vomiting may be accompanied by diarrhea, loss of appetite, or lethargy.