If you think you might have cancer, read a book called World Without Cancer, It's about Vitamin B17. If you decide to take B17, take it with Zinc Citrate 30mg, and I would buy the B17 from **********.***, not Amazon. The ones from Amazon have an enteric coating on them and I question if they are real.
The good news is a lot of nodules are not cancerous. There's a ton of funky things that can happen in your lungs, but if they see any changes in two months, they'll send to you have something like a CT scan or MRI to get a clearer picture of the density and appearance. If that still shows the possibility of malignancy, they can move on to biopsy or PET scan.
Just take a deep breath, and relax. Odds are, it's nothing as serious as lung cancer.
I had a 33 year old step sister who had something similar to her, she was a non-smoker when they found a 6mm nodule on her lung. She was so upset. She had never been a smoker in her life, although she grew up in a house with alot of smokers - somehow she never started smoking like the rest of us did. At first She was very angry at me and my sister for smoking around her all the time, and said it wasnt fair that we smoked all the time and didn't have anything, and then she never smoked and she gets sick.
She has continued to go to the doctor to monitor and so far it hasnt progressed in the past 6 months. Her doctor said theres no way to know for sure if 2nd hand smoke could have contributed to the growth, but it still makes her very upset and worried.