My parents also had incompatible blood groups and were told they would be very lucky if they had children. My brother was born and has lived his life as a strong individual. From the day I was born in 1952 I had jaundice but didn't receive a blood transfusion. I have suffered with fibromyalgia conditions since I was 4 child and after getting viral pneumonia in 1984; brain fog and worsening symptoms. My blood group is O negative, my mother was O +ve, my father A -ve.