My son is 8 weeks old and has just started faffing around during feeds, he latches on then takes about 4 gulps then comes off (often dragging at my nipple) then attaches himself again takes another 4 gulps and detaches again and so on... He has only just started this. He is generally a really good feeder and is massive for his age so i am not concerned about his weight or anything but it is very hard to satisfy his hunger when he keeps doing this. Any suggestions?