Hello. Yes. I have had same experience.
I had CT scan... 15 months later another scan. It shows a 7mm spiculated nodule that was not there before and radiology seemed concerned. I have been diagnosed 17 months ago by have a test. I got in glass box and panted haha. I'm 54 and surprisingly had no clue as to what I was doing or why. 2 months after test the finally admitted mind you I worked 2 months with me saying to doctors I AM SICK. I assumed it was bronchitis. They say I have COPD with unspecified emphasema. ( My latest CT say no emphasema no bronchitis) I use 2 puffers 4 times a day. My lung "specialists" sent me a note in my portal saying..." I believe this 7mm spiculated nodule is due to infection. I will do another CT scan and see you Sept 19. I'm not sure what infection I have and wouldn't that need rest and antibiotics? I've been working a very strenuous job that requires approximately 15 trips up and down stairs. So maybe yours is a infection that will just heal itself. I also take ibuprofen. 800 mg 2 times daily. Generic OTC I'm hoping for healing.