Hi,
Long story short I had a serve TBI when I was 13 and was put in a coma and contracted pneumonia which caused both my lungs to collapse which has caused me to be asthmatic I had a blue and brown inhaler (with ventilator) until I was 16 and then was completely fine until a few years ago when winter became nightmare for me as I would develop a deep cough (sometimes making my chest ache) which would result in me bringing up thick white phlegm and when I went to the dr about this she advised to go back to my brown inhaler and ventilator to clear it which works, is this a version of copd ? as no on has ever told me why this happens.