My ds is 6 1/2 wks old. He seems to have some strange activity at the breast. Sometimes he will grunt, squirm, pull and hit while nursing. It's as if he is trying to come off, but can't. Sometimes I think he is getting too much milk and can't handle it, and other times I think he is not getting enough and is frustrated. Neither of these activities are new, so they are not directly related to a growth spurt. Anyone else experiencing this? Any thoughts on keeping him calm at the breast? (Stroking and talking softly do not seem to be helping). TIA!