My sister is in hospital in New Zealand, they have found black spots on the lungs and heart. She is very weight. Non smoker, The doctor first notice the spots of her lungs, he said there needs to be further scans 1. cancer, my sister has lost 20kg in approx 1 month 2. Blood clots, she has been in and out of hospital due to loss of bloodd 3. Infections He has just noticed today the spots of her heart?