@marye2, here's some general information about nodules that you've perhaps already seen.
- What to Know About Nodules https://www.healthline.com/health/nodules

It's common to not have any symptoms with nodules and that they are discovered when scans are done for other reasons. I'm glad that your doctor is following up on both the thyroid and lung nodules. You may be interested in these related discussions as you prepare for the biopsy of the lung nodule.
- Small lung nodules: How often should they be scanned / monitored? https://connect.mayoclinic.org/discussion/lungs/
- Multiple lung nodules https://connect.mayoclinic.org/discussion/multiple-lung-nodules/

@merpreb and @sueinmn can offer valuable experiences.

Mary, did they tell you the size of the lung nodule? What was the reason for the CT scan?