good day. my baby is born at 33 weeks 1.8kg I could not breast feed because I was on a lot of meds blood pressure. I had preeclampsia. she was in hospital for 18 days and on nan starter infant formula 1 for more than a month. her stools where fine yellow brown, but she had stomach cramps so we put her on similac total comfort 1 for about 15days, her stools where yellow brown and fine. but her stomack cramps where the same and it seemed if her stomach began to be lacy not working every second day. all so when passing wind it was very uncomfortably for her. so I put her back on nan 1. her stools went dark green. and its now day 5 back on nan and her stools are dark green with yellow spots with a strong smell today on day 5 of nan 1. she has no fewer and drinks well 8 times a day 80/100ml a time. she weighs 5kg now and is 11 weeks. is this ok? should I worry about the green with yellow spots