Aubrey Plaza once suffered a medical scare that almost threatened her career as an actress. RadarOnline.com can reveal the Parks and Recreation alum has opened up about a stroke she suffered when she was 20 – and which left her paralyzed. 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 of the coolest thing about it …