hi dr, my cousin has had breast cancer, what type, im not sure. Her breasts have been clear from cancer for the last year, but she started to get shortness of breath, went to doctor and is in hospital now, has a lot of fluid on her lungs. She is awaiting cat scan, how serious could this be, doctors are not telling her a lot but they said the lungs have a lot of fluid and more than likely cancer is back. She has just got fluid drained. What do you think. Thankyou.