I'm a 30 yr old woman, I do not have a history of medical problems, the last few weeks when I lay on my stomach I have been feeling a strong pulsation, much stronger than in my chest. When I lay on my back I feel an area with a very strong pulse on my abdomen, near my umbilicus. I know the major artery, the aorta runs in the abdomen... So is a strong pulse a concern. Or just normal aortic flow?