aw gis all kids go through this phase. J did it to everyone and even had a case of biting. bite a child in playschool b4 and broke the skin i was mortified i really was.
tried time out, didint work, tried taking away stuff, didnt work either. really need is the patience of a saint and just keep saying that hitting other people isnt nice.
try telling him ( now i no he only 2) but that you dont want to talk to him until he is sorry and he is better behaved!!!!
aw the headbutting i rem that phase very well too 🙂