sick

I'm sick!
I came down with a fever on Friday night, and went to bed early.
Saturday, I woke up feeling a lot better, and thought the worst was behind me.
Sunday, I was a little woozy, but overall not bad.
Monday it hit me like a ton of bricks.
Fever, chills, achy, sore throat... the usual.
Called in Sick to work on Tuesday.

But, this has me wondering why I felt OK on the weekend. Could it be?
Could it be that I'm allergic to work?