right joshua used to have 6oz in his bottles and usually drank all of the 6oz at nearly every feed. now he isnt having even 5oz at every feed,he is still wanting a bottle every 3 or so hours like he did when he was on 6oz. at night he has a bottle at 6:30 ish then doesnt have another until 1ish (this is the same even though he isnt drinking the same amount) the last few nights he has woken up for a feed but only taking an oz or so. last night i decided to change his nappy first to see if he would settle back down as he mightbe just waking up for a nappy change. he doesnt cry for a bottle he justs winges and grunt. (even if you leave him for 30mins or more) he still wanted a bottle after his nappy change but only took 2oz. why is he not taking as much milk as he did before? should i be worried or not?