I would take to heart T9's advice. You should be seeing a pulmunologist and a thoracic surgeon. and given the potential gravity of a 6 cm mass plus the fact that you're just not feeling well, it's reasonable (and arguably wise) to seek a second opinion. Even if you like your current doctors. While two docs might not say the same thing, you want to be sure the preponderance of opinions point in the same direction.
Best of luck. Don't do yourself in--particularly in a Porsche.
