Or she was dehydrated.
No, she was full of fluids, she just could not process them. Her bone marrow stopped working several years earlier. She was a real fighter right up until the end.
She was an amazing woman, she was raised in an orphanage in Yugoslavia, during WWII, she was questioned by the NAZI's in a railroad station, and answered them in perfect German. After the war she was headed back home and an American solder asked her where she was going, he told her she was better off in America and gave her some money. She loved this country.