Stacey Yepes, a 49-year-old woman from Toronto, knew that the numbness in her face and the trouble she had speaking was not merely stress-related as doctors had suggested, but something far more serious. When the symptoms reappeared while driving her car a few days later, Yepes pulled over and hit record on her cell phone to capture a selfie video of what she was experiencing. After doctors viewed the video they realized that Yepes was not managing extreme stress as they'd originally diagnosed; rather she had in fact suffered a mini-stroke.

It was 6:42 pm on April 2 when Yepes pulled over to the side of the road in her SUV: "The sensation is happening again," she tells the camera. Yepes then explains how the left side of her face is "tingly" and that raising her left arm to touch her nose is difficult. Her words are slurred as she repeats what the doctors told her: "Breathe in, breathe out, manage your stress," she says.

In an interview with CBC News, Yepes states that she hit record because she needed people to see what was happening to her: "They're saying this is stress," she recalls, "but I knew this was not stress." The doctors at Mount Sinai Hospital in Toronto referred Yepes to the Toronto Western Hospital's stroke center, where an MRI scan identified a small area of injury causing her stroke behind the wheel -- as well as two other previous strokes. The hospital posted the video to YouTube as a way for others to better understand the symptoms.

For Yepes, pulling her SUV to the side of the road that day and having the wherewithal to hit record was vital in receiving the correct diagnosis. And by doing so, the video she made may help others in the future. But for now, she's glad to be on the mend, and as she told CBC News, relieved "that finally somebody believed that it was not (caused by) stress."