DD is in Pre-primary going to Year 1 next year. She has always had an unnatural fear of boys but it seems to be getting worse. She hides away during break times at school so no boys can come near her. She will even lock herself in the toilet. I do parent help on a Friday and see how she cowers behind me when the other kids run around. I don't know what to do about it anymore. She absolutely loves her Dad, and has no problem with him. She only has a sister though. But is it natural to be so terrified of other children? She plays with girls but only in small groups and if in a confined area with no boys around. She has a friend who comes to visit who has a 2 year old brother. She hides away from him too even though he is so much smaller than her. What can I do?