I switched my DS to whole milk about 10 days ago, prior to that he was bottle-fed on Aptamil. He loved it immediately and that was that. But in the past week he has been puking after his evening feed, and I'm beginning to wonder if he's finding the milk too rich. Should I be giving him less milk that I did formula as he gets used to it? He's also been having very soft poos - sometimes actually diarrhoea. I'm not sure if a) he's got a tummy bug (he had a fever a few days ago), b) a dairy intolerance (though I've been cooking with cow's milk and giving him yoghurts etc since he was six months old) or c) he just needs time to adjust. Any advice would be much appreciated!