An 18-year-old says her Apple Watch alerted her to a serious health issue. Deanna Recktenwald says it started when the device picked up on an unusual heart rate. Her mom Stacey is a nurse. She took Deanna's pulse, which confirmed what the Watch was reporting. So they went to the emergency room, where blood tests showed Deanna was in kidney failure. InsideEdition.com's Mara Montalbano (https://twitter.com/MaraMontalbano) has more.