Hi @pb50, you have been through a major surgery, I hope you start to feel better soon, but it can certainly take some time to heal when so many nerves are involved.
You may want to check out this discussion on lung surgery, if you haven’t already seen it. Some of this can be scary to read, so try to keep it in perspective, but there others that feel similar to you.
https://connect.mayoclinic.org/discussion/had-lobectomy-in-2020-still-having-radiating-severe-nerve-pain/
Has your new pulmonologist weighed in on your questions? Sorry that I don’t have an answer, but I’d be interested to hear what they say about the air travel.