Sounds like "sick building syndrome" at the mall. Re-circulated air, probably heavily-laden with "off-gases" and mold.......no wonder you felt like the proverbial bag of sh*t. Good that you got out of there so the toxins didn't build up in your system. Always good to work somewhere that the windows actually open to the great outdoors....

I had a doctor once who told me that fresh air and excercise was the best cure for what ails ya.....I had sex with the window open alot!

Pixie