I have four cancerous lesions in my left lung. My doctor and I have decided that, since I already have emphysema and IPF, that the option to do nothing is best for me. I am 85 years old this year, so I/we see no point in going thru chemo or radiation at my age. My question is, I am currently in no pain at all (except the little aches and pains from age, that come and go as expected at this age.) Lungs do not have nerves, so I anticipate no pain until the cancer metastasizes. Am I correct in assuming that wherever it goes will be the source of pain, and the extent will be governed by the site it strikes?