Is it normal to be able to see and feel a strong pulse in your abdomen with each heart beat? or could it be aaa?

Depends on details: Normal, slim teens and young college students can see their pulse in their stomach areas when lying down, and they can feel it there too. If there are other reasons a teen or student is worried that he is not a normal person, he can call his doctor. Otherwise, he can just ask his pediatrician or primary care doctor about the stomach pulse beat during his routine check-up.