I am 26 and have been smoking on average 3 rollies unfiltered a day. I kind of feel bad complaining about my circumstances when you look at what other people have to endure. I have quit for 5 months and about 4 weeks ago my lungs started opening up at the bottom of my lungs and started experiencing a lot of lung pain with shortness of breath. I have no cough but a lot of congestion slipping up my throat and grosses me about the fact I even started to smoke. I am scared about the damage I've done and have gotten quite depressed about it. My doctor said I would of done no damage at all in that short time and didn't even bother offering me any tests so I don't really believe him. The problems is I can't see my lungs, I can only feel them and they don't feel too great atm. I'm going to go back to my doctor if the pain persists but what's the chances of me having mild emphysema? I have been exercising as much as I can on the bike but recently stopped altogether as its a constant reminder of the damage I've done. They tend to burn after exercise and feel really inflamed.