Casey Dailey, age 38, was fighting Cushing's disease, a pituitary gland disorder often caused by a tumor creating excess cortisol. She had surgery Aug. 23 and went home the next day. Over the following weekend, she began feeling sick. She vomited, sometimes with blood. Then, she couldn't stand or talk, relatives said. A high fever started Sunday, after floodwaters surrounded her home, and she became unresponsive.