Lung Nodules

I was diagnosed at stage 3 in May 2023 at 69 y.o.. I had a distal pancreatectomy and splenectomy followed by 12 rounds of Folfirinox and 6 weeks of chemo radiation. My CA-19-9 has been 7 for two years and my scans have been NED. I have had no issues since completing treatment and lead a full active life. Feeling very fortunate. My initial chest scan prior to surgery in May 2023 indicated innumerable small (3mm) nodules. These have been noted in all of my scans over the past three years as unchanged. My most recent scan (March 17) indicated 3 new small (also 3mm) indeterminate nodules. My oncologist is not overly concerned. The radiologists recommendation is to have a follow up CT scan in 3-4 months to see if there's any change. The nodules are too small for a PET scan to be meaningful. Has anyone had similar experiences with nodules? I have agreed to get the scan in 3 months to be on the safe side.