Sarah Brautigam , of Doncaster , has been close to death dozens of times . Former GB canoeist , 21 , has postural orthostatic tachycardia syndrome . Miss Brautigam has rapid palpitations that cause heart to stop beating . On occasion she has to wait up to 30 minutes for her heart to refill with blood .
Sarah Brautigam , of Doncaster , has been close to death dozens of times . Former GB canoeist , 21 , has postural orthostatic tachycardia syndrome . Miss Brautigam has rapid palpitations that cause heart to stop beating . On occasion she has to wait 30 minutes for her heart to refill with blood .