Monday, 7.30pm, Discovery Home & Health For four years, John Page, 53, has been in a life-and-death search for answers. Page is just one of many patients in the Undiagnosed Diseases Program, a transnational American health initiative headquartered in Bethesda, Maryland. A clinician tells us that Page was referred to the program because he presented with a rare constellation of symptoms. These suggested the involvement of multiple sites in his body, including his muscles, nerves and, most likely, his brain. It all started with lightheadedness four years ago. Hypochondriacs, beware.