Welcome Kneesaa. I might have good news for you. I was dx. in 2003 with Stage 1B NSCLC. I had surgery to remove my right UL. Altho. the surgeon told me I didn't need any more treatment, I sought the advice of an oncologist and decided that adjuvant chemo (carbo and taxol) would be a good idea. Following chemo, I had CTs every 3 month. 18 months later cancer was found in my left LL. I had a PET scan and was in surgery three weeks later. Again, the diagnosis was stage 1B NSCLC. My doctors in VA seemed to think this was a new primary. Shortly after surgery (3 wks) I moved to FL and the Onc. I saw there considered it to be stage IV because the specific types of cancer were the same both times, so they couldn't definitively say that it was a new primary. Nonetheless, he also didn't seem too excited about chemo again. [We never understood this] I did go ahead with chemo (cisplatin and Gemzar). I also changed drs. in the midst of chemo and the second dr. didn't want to offer an opinion on it being mets or a new primary. Since it has now been more than 4 years, it seems to me that it was a new primary. My current Onc (yes, I did change one more time) seems to think that it isn't likely that the second cancer will return. Possible, she said, but not likely since it has been such a long time.
So, your story may end like mine. It's been 5 1/2 years since the first diagnosis! Good luck.
Muriel