So I had an unfortunate first experience today. I was teaching my class and everything was fine, and then it wasn't. I got very faint, ended class and nearly passed out right there. I have never in my life had an experience like that and it really was quite upsetting.
I will see the doctor tomorrow just to make sure I am OK, but I am guessing it is a bad case of doing too much, maybe getting sick, not drinking enough and being anemic. Now if only I could shake the headache I have.