Yes, it is a shock to find out one may have lung cancer. But lung cancer can be treated. Read the stories here. In Dec 2021 I had a 3.1 cm somewhat spiculated cancerous nodule removed. I am doing fine 14 months later. They did video assisted thoracic surgery and I was home in two days and driving my car in a week. What is important is to find out what treatment options (surgery, radiation, etc.) exist for your particular situation. And then to go to the institution that can provide the treatment you believe is best for you. Not all doctors/institutions offer the same treatment options.