Aubrey Plaza suffered a medical scare that almost threatened her future career as an actress. The Parks and Recreation alum opened up about suffering a stroke when she was 20-years-old, in which she lost motor skills and was paralyzed, RadarOnline.com can reveal. Plaza, 40, reflected on the harrowing event and the impact it had on her life during an interview with Howard Stern. During her appearance on The Howard Stern Show, Plaza explained she suffered the sudden stoke while out with friends in New York City. She told the radio host: “It was wild. “The craziest thing about it – and kind the c…