I'm another one who may not need to be here, but I feel better just having read some of the posts here, although still am worried. Up until a few weeks ago, I was (as far as I could tell) perfectly healthy. I'm 43 and a smoker (although smoking much less than I did a few weeks ago).
I had a cardiac CT (which was fine) which also found a 4x5 mm nodule on my lung and large liver lesion - no further details. My doctor's office called and told me there was something on my lung and liver and I needed to go back right away for chest and abdominal CTs.
The abdominal CT report said the liver lesion "may represent a hemangioma" and mesenteric lymph nodes are mildly enlarged. The chest CT found one 6 mm nodule, one 7 mm "vague nodule", and on 16 x 13 mm "vague small area of infiltrate" - no hilar or mediastinal adenopathy. There is no further detail and the recommendation is follow up in 6 months. Since I was unable to get my doctor to answer any of my questions, I made an appointment with a pulmonologist who wants to see the actual films before she can tell me anything, but also suggested a PET scan. I almost get the impression that she suggested the PET scan because I'm worried, not because she's worried (I asked whether she was okay with waiting the week or so for the films to be mailed instead of me going and getting them and she said she was fine with waiting longer than that, but if I was worried, we should follow up faster).
So...now I'm wondering if we're pushing ahead because I'm panicking or because the doctor feels it's urgent. If it really is appropriate to wait 6 months, I'll learn to handle it - I just haven't gotten a doctor to tell me what they're thinking or why that's the best option. (By the way, I do live in an area that sees a lot of histoplasmosis, although neither doctor has actually mentioned that to me - so either that's a good thing or I'm just finding ways to falsely reassure myself.)
Sorry for the long post, but as you can probably tell, I've been really worried the last few weeks and it seemed like a lot of you here have been through a lot of this nodule scare stuff.