intestinal obstruction in dogs symptoms
Dogs with intestinal blockage may be most likely to vomit after eating. Other symptoms of intestinal blockage in dogs include: 1  lack of appetite. 2  weight loss and anorexia. 3  diarrhea.4  weakness.hese is because your dog is vomiting up feces that can't pass through his intestinal tract due to blockage. Dogs with intestinal blockage may be most likely to vomit after eating. Other symptoms of intestinal blockage in dogs include: 1  lack of appetite. 2  weight loss and anorexia. 3  diarrhea. 4  weakness.