The feeling is hard to describe. It's kind of like what it feels like to ride an airplane. There were a few times where I asked Dad if my bed was moving when it was completely still. I felt generally disoriented but nothing too intense. At one point I did think I was seeing something red in the room when I wasn't. That's all there was though.
Today will be more intense, but of course they'll be watching closely for any problems or complications. I will be safe.