Have you ever burped and ended up getting some chunks instead? Well, that's kind of what happened to me yesterday, but I ended up completely throwing up. Luckily I was in the bathroom at the time. I was really surprised because I was completely taken off guard. I wasn't even feeling badly beforehand.
I decided to just lie down and rest, and that's exactly what I did. I slept most of the day. I think I was only awake for a total of 4 or 5 hours.