It’s normal for people to fear the worst, I do it all the time so I’m not making life easier for me. I have learned that nodules don’t usually change or grow when they’re benign however they can also change with infection or other conditions, you’re in a good place because the nodule is very small and you can’t beat early detection, more good treatments are available and helpful medications. Lots of people who have respiratory problems never smoked cigarettes or cannabis, it’s probably due to our environment getting more polluted. however it’s a good benefit for you that you never smoked, please keep us posted on your progress.