Lo has been pooping after every single feeding! 1 day can have 5-6 poops! Just switch to step 2 formula few days ago. But before switching she alr starting to have watery, sometimes green poops also. Tried to stop purees for her but its still the same. One of her bottom tooth alr grow out(can be seen clearly) and another one is cutting through so im wondering whether teething is the cause of the diarrheas. She's starting to have diaper rash too. Could it be the formula or teething? Should i change to another brand? Or i just stick to current brand? Need some help! TIA