From a doctor's point of view, a previous smoking history DOES count, no matter how long you've been off the cigs. Every cigarette you've smoked in your life causes damage, and it's all cumulative. It takes years to get back the lungs of a never-smoker (10 years? Maybe 15?). Sure, I feel SOOOO much better and I'll never smoke again, but I'm not kidding myself that something awful won't rear its ugly head years down the line because of my stupidity for 34 years. We're ex-smokers, and our lungs will show it for a long time, unfortunately.