What do you think it is when you have a heartbeat type of thing in you stomec area.its nit normal.i can push down on my stomach and feel somthing beating like a heart, i realy want to know.?

Abdominal Aorta: You are most likely feeling the abdominal aorta which is the largest artery in the body. Your blood is pumped out from your heart into the thoracic aorta which turns into the abdominal aorta as it passes thru the diaphragm just behind your stomach. This is what you are feeling, the pulsation of this large artery we call the aorta. It is felt in thin people.