"Vivacious" schoolgirl, 16, died from undiagnosed heart condition day after she had been shopping for prom dress

'Vivacious' schoolgirl, 16, died from undiagnosed heart condition day after she had been shopping for prom dress Alex Reid never saw her GCSE results which were six A* and four A gradesThe part-time model had swam and played netball for SheffieldParents found her unresponsive in bed and she could not be revived By Steve Robson PUBLISHED: 17:30 GMT, 8 February 2013 | UPDATED: 19:03 GMT, 8 February 2013 Active: Schoolgirl Alex Reid had been a keen skier, netballer and swimmer before she died of an undiagnosed heart condition A schoolgirl died in her sleep from an undiagnosed heard condition the day of her final GCSE exam, an inquest heard.