Today was rather embarrassing for me. It was my last day teaching a class, and it was supposed to be a fun day; I had made up a jeopardy style game based on content I had taught them, and even had candy as prizes. At the end of class when they were claiming their prizes, I suddenly felt very ill and had to run out of the classroom...I looked for a bathroom but couldn't find it. I vaguely recall my vision going black and running face first into a wall and then collapsing. I finally made it to the bathroom and was sweating profusely. After about 5 minutes I felt better and was able to come out again to teach my next class. I had no more ill effects during the day. I'm not sure what caused it...I did eat this morning, although it was only cereal.