who let you go?

so bikram kicked my ass today.  mid way through the class today I started to get a massive headache.  occasionally I clench my teeth in my sleep and I know this because my headache lasts all day and radiates from my jaw.  I don't get these often, but I have one now.  and it began half way through class.  my goal today had been to do every pose once {every pose is done twice in class}.  yeah.  I spent 45 minutes on my back with my eyes closed, rubbing my jaw, just hoping that the pain would subside.  it didn't.  and now I feel like crap again, just in the last hour.  I just can't seem to kick this bug.  grrr.