natalie whitear , 35 , struggles to pick her husband and children out of a crowd - walks past lifelong friends in the street .
the mother-of-two suffers from prosopagnosia , also known as face blindness , which means she is able to recognise objects , but not faces .
the condition that mrs whitear ca n't recognise her husband garrick , 39 , or children mia , also known as face blindness .
the condition is so severe that mrs whitear ca n't recognise herself in the mirror as she suffers from prosopagnosia , also known as face blindness .