My daughter is 15 weeks old and up to a few days ago has been taking 5 6oz bottles per day no problem. For the last couple of days though she hasn't wanted to finish her bottles so it has been a real struggle getting her to take more than 4ozs. She has had a cold but it is practically gone now and hadn't affected her appetite. She sleeps well - through the night and has good naps, so I don't know why she's not taking it all she just doesn't seem interested. Has anyone else had this problem? Is it normal for them to go off their food a bit? Any advice greatly appreciated.