Have you tried the electronic cigarette? They say the steam from an e-cigarette can actually clear up your lungs because there is no "tar" generated from it. You still get a hit of nicotine too. You DO have to draw harder on it but, there is still no tar. It's amazing how much damaging tar comes from just one regular tobacco cigarette. Just ween yourself over to the e-cig is all that is required. Make it a habit and stick to it. I have a friend who smoked Marlboro cigarettes for 37 years and was in a similiar health situation as you who used a brand of e-cigarette for 10 months by getting hooked on it and now has less limited breathing capacity. As a result of this, my friend is more active than before (walking everyday, moving around a lot more). He is still using the ecig. He recently started using "flavored" cartridges. You can purchase an ecigarette from some of the smoke shops on cig reviews home page. The white starter kit is popular because it looks the most like a real cigarette. Try it out and good luck.