My daughter had trouble breast feeding with her new born and they had to go onto formula. Poor little man had very bad colic as a result and now he's been grumpy and miserable a lot. One of the health visitors recommended going onto Cow & Gate comfort formula, so they've been using that, but he's been doing green poops ever since. One health visitor seemed quite worried by that, another thought it was perfectly normal. Has anyone else had this? Not sure whether to be worried or not!