For a little while now - Sarah has been coming to me and saying "Mummy I have Happy Leg". And shows me her leg. Everything looks normal - so I just rub it, kiss it and send her on her way.
But then she is back - "Mummy I have Happy Leg"
Finally - I have worked out, that she gets Happy Leg when she sits on her legs - we call it Pins & Needles!
So I told her if she sits on her Couch or Chair then she won't get Happy Leg any more.