Walking and separation anxiety??

My son walks with his hands and arms in the air, kind of like a mummy. Is that normal? I want to think he's just doing it to keep his balance but I'm not sure. He's also dealing with separation anxiety. I feel so bad whenever I leave or whenevermy fiance leaves. He starts screaming and crying and I have no idea how to make it better. Help??

lol yea my nephew walked like that for a lil while try puttin a toy in his hand so he can get his mind off tryin to keep his balance