I suspect she is fighting for her life. After battling two other cancers, and now lung cancer, if she has the rapid growing lung cancer, she has 2-3 months from the surgery in December. She might prolong her life by using alternative therapies other than chemo and radiation, which are not toxic to the human body, but most people do not resort to alternative therapies. They tend to accept their fate and check out.
My father had a fast growing lung cancer. Doctors gave him 2-3 months, and offered NOTHING in terms of helping him. They said he was maxed out on chemo and radiation from their efforts to deal with the lung cancer in the lung, and they offered NOTHING. I then turned to him and said, "are you ready to listen to me now?" Only when doctors told him his time was finite and ending soon did he listen to me. He took mega doses of shark cartilage, lived two years on a feeding tube, for his lung cancer metastasized to his esophagus. After two years he quit taking it, because he could not swallow, but from his choking on his saliva, he would occasionally regurgitate the contents of his stomach, and back in the 90s, shark cartilage had a fishy taste, and he disliked it, so he quit. One month later, he had a tumor pop up on his leg, which was surgically removed, and one month after that, he died. He lived two months exactly as the doctors indicated when not taking the shark cartilage.
So, if RBG does not use alternative therapies, she has another month or so. Lung cancer is brutal.