I am a 40 yr old, normally in excellent physical conditiona. I workout almost on a daily basis if I am not sick. I got walking pneumonia 2 years ago and didn t take proper care of myself. (I am a single mother with my own business). I got better for a couple of months and then began getting Bronchitis every month. Finally, after a friends suggestion, I went to an allergist and was diagnosed with asthma . It was over a year before I was able to get everything under control. It s been 7 months since my last battle with bronchitis and I am in bed with it again. I was around a tractor that was pushing a lot of dust around and exhaust from a jeep. I was struggling to breathe. Within a few days, I was sick. Can my lungs be this sensitive to environmental factors? Is there anything I can do to make my lungs stronger? I run when I am well to try to help strengthen my lungs. I am so sick of being sick. It scares my child so much every time I get sick because of how ill I have been the last couple of years. Please tell me anything you think I can do to prevent me from getting bronchitis. Thank you so much!