Earthquake Dream: Symbolic or Pre-Cognition?

Last night, I had a strange earthquake dream. I was dreaming that I was on one of the highest floors of a high rise building (about the 40th floor thereabouts). I was working out, but standing still for the moment with one leg up on a step and the other leg down on an elliptical trainer. I looked out the large plate glass window at the city below me when suddenly I felt the building begin to sway. Over the next 30 seconds, I felt the building swaying more and more to the point where I had to hold on to the trainer to keep from falling off. It was like I was holding onto a car or a gondola on an amusement park ride to keep from falling off. I felt the oscillating mass and weight shift, back and forth. If this was a quake, I thought, then it is a large one. In the next few seconds, it woke me up. I actually thought that we were having a real earthquake in Los Angeles. I looked at the clock, 4:13 a.m. When I awoke, everything was instantly still and quiet as I lay in bed, but I became keenly aware that my dream had affected my balance and sense of equilibrium. I felt it in my dream state. Never had that happened to me before.