Hey guys, I've noticed after a taxing cardio workout like HIIT, or possibly attempting a record mile time that afterwards I'm left with what I'd call "lung burn". The soreness is generally gone within an hour but I get some residual effects. The common theme when this occurs is my breathing is basically out of control, because my body wants more oxygen than it's getting, and the pace is sustained for 5-10 minutes. Afterwards, I'll have a cough if I try any deep controlled breathing, accompanied by wheezing. Exhaling or inhaling deeply sounds similar to with a pretty major chest cold. Pretty gross wheezing sound. A strong lung clearing cough usually clears up the wheezing to some degree, and I don't produce anything gross. Just basic spit/phlegm. The symptoms above only last for 12-24 hours, but I kinda wonder if it's a bad thing. I remember all the way back to middle school I'd experience similar symptoms after running the mile and trying hard, but since then I smoked for about 4 years, and I also had walking pneumonia a year ago. My question is if this is a common experience among anyone who pushes themselves in cardio, or is it a very minor case of asthma or some other lung related disorder?