Jane Garvey talks to Grace Spence Green, a 25-year-old trainee doctor, about an extraordinary turning point in her life. Grace was walking through the atrium of the Stratford Westfield shopping centre when a man fell from several storeys up and landed directly on top of her. She woke up hearing screams and slowly realised they were her own. She was urgently telling those around her that she couldn't feel her legs. Grace was left seriously injured. She spent weeks in recovery in hospital, many of those nights desperately trying to wiggle a toe, many of the days learning the new skills of navigating life in a wheelchair and coming to terms with her new reality. All the while everyone around her was full of opinions and fury about what had happened to her but Grace's reaction may surprise you.Do you have an extraordinary story that you’d like to share? You can contact the programme at Lifechanging@bbc.co.uk