My cousin has lung cancer with lesions on her brain. She is in denial no treatment. We took her to the hospital Memorial Day weekend. Doctors told her she doesn t believe them. She is home no treatment doctor said it would not help, now feet are swelling and her personality has changed to the worse. She said her rib cage hurts and her lower back. I think it is hitting all her organs now. With this rapid failure going on Doctor said maybe 30 days . How can we tell. The pain in her head is unbearable where they had her in morphin. I feel we may be at the end stage how will we know?