What does it mean when you feel a pulse in your stomach?

See a doctor ASAP: A main artery, the aorta, runs from the heart down to the abdomen, called the abdominal aorta. If the walls of the vessel weaken and the artery bulges out like a big balloon, you may feel a mass in your stomach region and feel a pulsation. If this is the cause, get it seen soon because if the wall of the artery bursts, you will bleed to death rapidly.