This is weird. I was driving on the freeway at around 75mph, when I felt a sudden but slight sensation that the car started to drift. It was on a straight stretch of road so I assumed that a mechanical component had broken. Afterwards, the car drives okay and doesn't pull or anything. But I could tell that something wasn't quite right. I went over a few "speed humps" and instead of the susspension bouncing the car up and down, the car rocks diagonally on the suspension. Driver rear and passenger front.
Did I blow out a shock? Ball joint?

 

could be signs of a possible lower control arm bushing