Hi, I have posted this video several times, I hope it helps you, it is a very experienced cardiologist talking about aneurysms and exercise.

Exercise is encouraged as you want your body in the best shape possible, but there are some limitations and they are mainly related to exercises that raise your BP, BP is the worst enemy of aneurysms and doing any exercise that leads you to hold your breath/grunt while exerting, should be avoided as it is known that during that interval your BP rises significantly. That happens very often while lifting heavy weights, sometimes crunching, etc as we tend to maintain spine stability.

I hope the video is helpful to you