I am so sorry. I lost an uncle to lung cancer. He had one of his lungs removed but didn't live much longer after that and it was pitiful to watch him trying to get air. My neighbor actually quit smoking and developed emphysema five years after quitting. Apparently the damage was already done. My hubby has been smoking for decades. It is a worry that I live with every day. At this point he has no plans to stop. Your post scares me because I feel that he will wind up like your aunt. I hope your mom will learn from this before it is too late. (((hugs)))