Vomiting, especially repeated vomiting
Trying to vomit but nothing comes up
Loss of appetite
Refusing food or water
Lethargy or weakness
Abdominal pain or tenderness
Swollen or bloated abdomen
Restlessness or inability to get comfortable
Straining to poop or no bowel movements
Diarrhea, sometimes with blood
Drooling
Whining or signs of discomfort
Hunched posture
Dehydration
Sudden collapse
Signs of choking or gagging
Eating grass, toys, bones, or other non-food items
Immediate worsening after eating or drinking
Black, tarry stool
Pale gums
Rapid breathing or rapid heart rate