It sounds like you just caught a little stomach bug or you may be dehydrated. It should pass soon, but in the meantime, drink LOTS of clear fluids. I always drink some Pedialyte when I have diarrhea. This will help if you are dehydrated, and it will help to prevent you from getting dehydrated (from the bug) if you're not already.
Feel better

Chloe sends a big get well kiss