I was diagnosed with lung cancer in Feb 1995 in Russia in the right lung. Had it removed University of Pennsylvania. Given 1-5 years to live. Started smoking again in 2001 and diagnosed lung cancer in the Philippines in November 2002. Had lobe from left lung removed and thought I would die several times. Given little chance by doctors beyond one year. Nevertheless, seemed to have adjusted but gained 50% body weight and almost died again but lost back the weight and feel good now. I suppose no way to give life expectancy on this.

Well now you know that the doctors don't carry expiration dates for their patients! You are still here despite what you have been told and that is great.
Though no one can tell you what your "expectancy" should be, I just wonder if you had surgery only or did you receive chemo as well? Also you didn't mention a stage, do you know if you had any lymph nodes involved? What about the histology of your tumor?
You might have been cured, only to experience a second cancer as we are all at an increased risk for developing a second cancer.
Glad you're still here, and yes, people survive with an entire lung removed, so a lobe from each lung shouldn't be tough, but doable.