Aaa Aneurysm At 28 Irregular Pulsing In Abdomen?

Irregular Pulsing in abdomen? - aaa aneurysm at 28

It started yesterday evening and lasted until today (12 hours) It's like this feeling sporadic and have my lower abdomen that is not compatible with my heartbeat. It is sometimes faster, sometimes slower and sometimes take a few seconds, and I can not feel anything. I also have pain throughout the body, so I think it might not be a AAA (aneurysm of the abdominal aorta). I'm not entirely unhealthy, and sometimes work can not guess what it comes. Maybe stress? Please, someone who is a doctor, EMT, or nurse will answer for me!