Why is my dog throwing up, not eating, and can't pee or poop?
Chronic vomiting, has multiple causes but may cause an electrolyte imbalance which could account for the symptoms you are seeing. If he is drinking more water than usual, he should be seen by your vet for an exam and bloodwork to rule out kidney disease, diabetes or other GI issues. When a pet is vomiting, withhold food for 12-24 hours. Allow small amounts of water or unflavored PediaLyte. Resume feeding a bland diet (1:1 ratio of plain boiled boneless chicken and plain white rice). Feed in small, frequent amounts waiting at least one hour between feedings. If he won't eat, serve the food warm or mix in a teaspoon of baby food to stimulate the appetite. If the vomiting stops, transition slowly to the regular diet. If not or if the appetite does not return, then you will need to see your veterinarian.
Updated on September 23, 2025