Our baby is 15 months old, she had her cleft palate surgery when she was 13 month old and we were in hospital and giving only milk for nearly a month and she was always hungry and tired during those times she did not get to walk, now she is 15 month old and is walking independently for short distances before falling over, we are worried she has not started running but she gets up and walks and shifts between walking and crawling, we are worried what should we do, what could be the issue