A 'fit and healthy' 28-year-old man suffered a stroke caused by a hole in his heart which he had no clue existed.
Chris Johnson, from Stockport, Greater Manchester, was alone in his flat getting ready for work one morning when he suddenly lost vision in his right eye, and all feeling on the right side of his body.
Shortly after calling an ambulance, he also lost the ability to speak and was left terrified waiting for paramedics to arrive.