My 8 day old dd has been ff for 10 days no problems she's been quite happy no reflux no colic. Yesterday and today she's wanted feeding every 2 hours on av and drinking 2-3 oz. We had the same thing with dd1 and changed her to sma hungry baby when she was 12 days old... Not recommend i know but she took to it better and never had and problems with it. We are currently using sma yellow and are thinking we need hungry baby milk again. Opinions please should i try changing to a different brand before going to hungry baby. Dd2 is well and.happy other wise.