My 7 week old at some feedings through out the day is very aggressive while nursing. He gets restless and kicks those legs, he latches and then relatches like a animal going in for the kill. Fortunately my nipples are fine and his diappers are good. But what I'm wondering is, is this normal? Does it stop? Is it something I'm doing ie. position, maybe my breast is empty(although it doesn't seem empty)?