Life couldn't have been better for Elyn and Guy Simmons. They were young, successful and ready to start a family. But then the strange symptoms started. And Elyn began to change. In this special, medical mystery episode of NewdMD's "Health Fusion," Viv Williams shares the the story of how a hard-to-diagnose disease hijacked Elyn's health. Then she met a team of Mayo Clinic experts who followed the clues and sleuthed out a solution.