Hi! I am a 26 year old female who was diagnosed December 2016 after a long battle with recurrent infections and a chronic barking cough. I would love to hear how other sufferers manage to keep fit? Whenever I exercise I get a tight, burning chest, the cough gets worse, and I cough up phlegm. I live an otherwise very healthy lifestyle, and hate battling to exercise. One thing I have noticed is that it is far worse in Joburg, where I live (high altitude and dry air) compared to when I visit family in Cape Town (low altitude and more humid air). Wondering if a humidifier will help, at least at home?