I know I shouldn't be complaining here but...

[Majick]

Yeah, P.E. can deffinately add to the strain on the body, especially if you're already not feeling well.

If you get worse, or no better, after 7 days, I'd see a doctor.  Might need a boost from some anti-biotics to kick-start recovery   A wron out body doesn't recover nearly as quickly or as efficiantly as a rested one. And since you have school 5 out of 7 days, you're definately not a weel rested one, heehee!