Went to the doctor. Talked about our further plan to keep checking that I'm fine and got some blood work done today.
Plan is to get another round of blood work done and a chest xray sometime in early January. Then I'll have a follow-up shortly after with my oncologist to discuss the results.
He said that they monitor progress for generally up to 5 years after the initial surgeries. So, I had my first surgery in 08/2011 and that would mean that by 08/2016 if everything's checking out that I'll be as out of the woods as current medicine can determine.