Oh dear that was creepy.
Maybe it was in my imagination, but I'm not sure. This morning, I had to let one of our cats back inside (this was around 6). A while after I got back in my bed, it started SHAKING. Quite violently, too. To the point that I couldn't lift my head up and say anything. So when it stopped, I did the first thing I could think of and opened the blinds, pulled out my Daily Light Devotional and read from it.
Oh, and moved to the couch in the family room.