Hi my name is Kathy Johnson and my husband ricky has stage 4 lung cancer his ankles are all swollen. he still smokes 2 packs of cigareetes everyday. He has been battling first throat cancer and now lung cancer. He can still take care of himself and does not require oxygen. We are planning a trip 2 Hawaii 4 2 weeks in October. He has recently finished with his chemo and radiation treatments and nothing has grown or shrunk, Do you think that he would be healthy enough in October to make a trip like this??