Well, I plan to be on top of my problem. I have scar tissue on left lung likely due to having a lengthy bout with pneumonia several years ago. I usually don't notice any problem, but sometimes I do get the lung issue and have to take high levels of steroids until things calm down. Obviously since mom had copd, lung issues runs in the family. Neither of us smoke either.
If you are having a problem with your roommate, you can asked to be moved to another room where you can set the temp at comfortable level. Don't be afraid to request that. The hospital has to try to accommodate your comfort needs. For me, breathing cold air is worse.