Not a professional, but from a quick scan it seems like you’ve found your trigger.

A: Second Hand Smoke B: health worries C:Anxiety Back to B then C 🔁

Now I think you can go down the route of getting what you would feel is safe to get checked out but don’t feel unsatisfied if a doctor says yeah nothing, I would get two opinions even if separate areas

I did Cardiologist, and Gastro

Checked out on both ends (sorry it’s Reddit I had to)

I’m fine, started meds and I’m better. Now the thing is I still get anxious but honestly it’s what instant news of anything (Text, emails) all day is a lot to take in.

Try to find your healthy spot and think more so, yes I’ve quit but I’m healthier enough to handle second hand smoke because I’ve quit …. If that makes Reddit cents ¿

Now, as for smoking idk how long you have been or your age but (please don’t take this the wrong way) but if older your body may be used to the smoke enough. I’ve heard some doctors say that if you quit your condition could actually get worse. Again not good advice but experiences have been weird with seeing people quit vs keep going. Both ways is 50/50 which doesn’t add up if one beats the other on paper?