I am 82 and an ex smoker. I have a small nodule on my right lung. It’s been checked by ct scan every six months for about 10 years. No change. I stopped about two years ago. I hope to live to 100 but have no worry about the nodule. Life is uncertain. Who knows? We are all different. After a number of major surgeries I could probably light up the city with my X-rays ct scans and MRIs. If you feel it is necessary probably should do it. Let your body tell you and have peace.