Cause of stomach illness difficult to detect

In this Aug. 1, 2013, photo, Donna Heller talks about her recent stomach illness in Burleson, Texas. After multiple visits to the doctor for debilitating nausea and diarrhea lasting a month, Heller was diagnosed with cyclospora by the CDC last week and began taking the antibiotic treatment just this week. A mysterious outbreak of the parasitic illness usually found abroad is growing, with more than 400 confirmed cases in 16 states. (AP Photo/LM Otero)WASHINGTON (AP) — Donna Heller thought she had cancer. But multiple visits to the doctor after a month with debilitating nausea and diarrhea didn't yield any answers. Convinced she was dying, she met with her lawyer to get her will in order.