small 3mm Nodule in right lung

My pre op CT scan showed 2 on each lung. a 5mm, 3mm and two 2 mm. I had just gotten over a cold. I also had 1 granuloma. My first pist oo scan is in about 5 weeks and if course I've worried this whole time but consider that 2 mm is about the size of a crayon tip. I also posed my concern on the lung cancer page and was told they are tiny and not to stress. The drs will watch them. Of course I will stress anyway. Lol.