Most people can feel their abdominal pulse every once in awhile.
However, if the pulse is constant, comes back frequently, grows stronger, or you have a family history of stroke, aneurysm, or you currently smoke and/or have high blood pressure - then you need to see your doctor and have them rule out abdominal aortic aneurysm. The screening test is a simple ultrasound, I had one after my father died of AAA a few years ago. The test takes 5 minutes. Caught early, AAA can be surgically corrected.