If you get stressed or your blood pressure goes up can your splenic artery aneurysm rupture or doing activity's.feeling like you are going to get sick?

Sheer stress: Sheer stress in arteries is what we believe causes aneurysms to rupture. If your pulse pressure goes up then the wall stress and sheer stress goes up raises the possiblities of aneurysm rupture.

Splenic aneurysm: Stress can increase blood pressure. Tension in the wall of artery is product of blood pressure and radius of aneurysm. Larger artery and high pressure can both lead to rupture.