Supposing my abdominal aorta had ruptured, how would i be able to tell?

Abdominal aorta: If your abdominal aorta ruptures you rapidly have severe pain, your blood pressure drops and if you have ruptured the wall so you're bleeding, you'll likely rapidly bleed to death. When you rupture into the wall of the aorta we call this dissection and its main symptom is severe pain. This situation is often as fatal as external rupture into the abdominal cavity.