Sucks to your Asth-mar!

I've had asthma since I was just eight-years-old.  I took medicine for it for just a little while and have had a rarely-used rescue inhaler around ever since.  On the off-chance that I have a flare it's usually stress or allergy induced.
I'm having a major flare this weekend which I'm guessing is hot-weather and heavy-exercise induced.
We took today as a down-day but I plan to be back on the treadmill tomorrow.  Why is it that when you exercise you're not instantly thin and healthy?
In the mean time I have spent time getting crafty again (finally!).  I'm going to work on a fancy-schmancy blog with pictures to post on Wednesday.