Feeling a little better today I decided to hit the treadmill.  While I was walking it felt just fine, but when I hopped off I realized my extremely low caloric intake of the last couple of days was a bad mix with exercise.  I'm feeling dizzy and light headed.  Good thing it was only 30 minutes and 220 calories burnt.  I kept down a 6 inch Subway veggie delight last night so I think I am on the mend...