I don't feel well when I am exposed to smoke, even for a little while. I also feel quite sick with certain strong perfumes.
But, I deal with it, quietly, and without imposing my difficulties on others. I avoid restaurants/bars where there is smoking, there
are other places to go. If I can't avoid and elevator with perfume, or someone elses smoke, I leave as pleasantly, and as quickly, as I can and get fresh air and soon feel ok. What's next? People are allergic to peanuts, are we going to ban them from restaurants? No more flowers on the table, they might make someone sneeze?....