[Marc]

I did 60 miles yesterday after work... unfortunately the last 15 were insanely painful. I should have checked the air quality maps before I left, but I had my old childhood asmtha coming back at me to the point where I could only breathe in about a quarter of my lung capacity without going into a coughing fit. That sucked. I'll be calling my Doc today I think.

Seems to be high levels of ozone that sets it off, and a fairly high exposure to it, such as breathing heavily for long periods of time... like one would on a bike ride.