If your veterinarian does not hear anything then the dog vomiting and diarrhea could be caused by fluids in the digestive system passing quickly through the body (called hypomotility), blockage of the small or large intestine (ileus), fluid that accumulates or inflammation of the tissue that lines the abdomen (diffuse peritonitis). (dog-health-guide.org)
Nelson's team is investigating the relationship of motility — contractions responsible for the digestion of food — with increased GDV risk, and hopes to define the biochemical and genetic alterations that may be associated with hypomotility — abnormally weak contractions. (sciencedaily.com)
In some people, peristalsis may go too quickly, known as hypermotility, or too slowly, known as hypomotility. (verywellhealth.com)