ds has always had a problem with balance. ped. always says to not worry. question.. ds runs with his right arm backwards and stiff. (stick your arm to the side shoulder height and bring it back like to stretch) the other arm swings i guess the way it is suppose to. when he does swing the other he looses his balance and falls.
he is 2 years old as of june 16th. he has been walking since one, so lack of time isn't it. do your children do this. ds has always had odd ways, some turned up nothing, others required intervention. don't know about this one.