I have lupus sle and was diagnosed in 2008. I was just told today that my ct scan shows i have emphazema and copd. I just got over a terrible case of pnuemonia where i was hospitalized for a week. i havent smoked in over 8 years. Is it the lupus causing all of this and what do I excpect now, health wise?

Summarized question: What is the cause of emphysema?