Hisako - I hear ya... work can be a huge stressor
Might want to have a plan for when you get off work - go home a different way (if you pass by a store), treat yourself to a cappuchino or something that doesn't contain the poison, take a walk, etc.
Me, I'm pretty stressed too - head is really fuzzy at the moment... As soon as I get out of here, I'm going running - I'm not going to pass go or collect my 100 bucks.... I'm going straight to the park. That usually makes me ok again...