How can i get the stomach virus and when do i get it?is it dangerous?does it has heartbeat?coz the one moving in my tummy has a heartbeat

Compound question: Are you sure you've got a "stomach virus?" Viral gastroenteritis will not cause a pulsation. If this pulsating is of recent onset, you need to go to a hospital urgently. Abdominal pulsations, unless you are very thin, may be a sign of an abdominal aortic aneurysm--i.e., a tear of the large artery in your abdomen, carrying blood to your legs.