Thanks Merry. They asked me about second-hand smoke, and both my parents were nonsmokers and my husband of 29 years is also a nonsmoker. I've never used THC or any type of chemical. I have always used perfumes and things like hairspray - not too excessive, but probably a few times a week. I also have used a lot of cleaning products and smell-good air fresheners, etc. I do want to mention that my mother (who is alive and healthy at 87), was told at the age of 60 that she had emphysematous changes on a plain chest x-ray. I am not sure what all they can see on a chest x-ray, and it worried her for a while - but til this day she has never had any respiratory symptoms?My PFTs went pretty good. My follow-up is scheduled in three months, but the office will call me sooner if abnormal. Thanks again for the information and support, and I will post when I find out any updates! 🙂