After major problems breastfeeding I had to resort to formula for my 5 week old daughter. The problem I have is that Aptamil gives her diarrhoea and SMA/Farleys give her constipation really badly. Family have suggested mixing the two (don't worry I'm not going to). Although changing her milk all the time can't be good for her digestive system surely this cycle isn't too good either! Any suggestions would be welcome (sorry first time I've been on this site haven't got the hang of the abbreviations yet)