Asthma

I wondered if someone with some experience could explain to my boss, just what asthma is.. he doesn't understand why i get sick all the time, mostly in the fall & winter months. He also doesn't understand that when he smokes around me, even if its a small amount, I find it hard to breath. He thinks I am just complaining, because I am an ex-smoker. I wished to god that I never smoked!! I don't know what I was thinking. Anyway, he's not very sympathetic to my condition and I thought maybe if he was educated on this subject, maybe he would understand better.

Thank you in advance for your help!

Paddie