Hello...........I wish I could give you more information but I can share that my husband has been undergoing tests and scans for 9 months now for a cancer of 'unknown primary' or a cancer that can't quite identify. However, the only tumor he has is in his lung and as of his last visit to the oncologist they are leaning toward lung cancer (same type and stage as yours). He is not a candidate for surgery due to COPD and the protocol (If it is a lung cancer) is the same as the protocol you received. My husband is 65. My husband has refused chemo and we are on a wait and watch approach right now. However, we are looking into a type of radiation called either SBRT or Cyberknife. I don't know if that might be a possibility for your lung tumor? That would be followed by radiation to the lymph nodes. We still on the fence so I can't share any reactions to treatment. Hugs to you. It's a very difficult choice. As we progress in my husband's care I will share if it might be helpful for you. Oddly, my husband's tumor and the overall activity of the lymph nodes has been shrinking.....we attribute this (as do our doctors) to the use of CBD and THC therapy with medical marijuana. It has also helped my husband with anxiety and the pain he has always experienced with peripheral neuropathy.