Kurt stumped his doctor with a mysterious medical ailment he'd never seen in three decades of medical practice. "Diagnosis: Dead or Alive" (Mon., 10 p.m. ET on Discovery Fit & Health) revealed Kurt's story, as well as the cause of the strange symptoms he was suffering.Kurt had strange lumps on his body, and had started coughing up blood. His lungs were filling with blood, and he was in danger of losing his life. But what could be ...