At least with a car crash there’s an element of human input and you’re aware of the potential outcome. With a brain aneurism you could be sat at home reading a nice book, blissfully unaware of your impending demise.
A friend of mine had COVID and for weeks after complained that his arms hurt, finally we convinced him to go to a DR. And they found a blood clot in each of his arms.
Had he ignored it, it could have come loose and caused an aneurysm or a heart attack.
He’s only in his early 30s.
It really shows how fragile we are as humans, and why you should listen when your body is trying to tell you something.