| thanks to all for the resesarch and good humor. i just found this...
 "Some kids head-bang for relief when they are teething."
 
 the little man is getting 4 molars at once.
 
 perhaps banging the head is like when you hurt your foot and you bite your hand really hard so you don't feel how bad your foot hurts ?
 
				__________________xoxo
 doodle
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