my daughter is two month old ..she is totally dependent on formula milk ..After delivery my pediatrician suggested a dexolac powder from onwards we are using this dexolac powder..when she is one month old I went to another pediatrician and he said that try nan pro stage 1 formula milk as it is best for my child ..after using for a week I noticed a green potty so after immediately I change into lactogen again I noticed same green potty ..I am totally worried for my child why she is having a green potty after introducing two different powder from different brand .. should I continue a dexolac powder or not?as she is facing a gastric problem..