question: My 14 month year old has been at ties walking fine and then limping with the left foot at other times. He ll use his toes to walk on it. I didn t notice a fall or anything that caused it. It s been about a week and i m concerned. He ll walk and run on it fine for a while and then back walking on his toes on the one foot and then back to being fine again. Do you think it s a spran? I can t keep a cold or warm pack on his foot long enough to do any good.