My little boy has been on Aptamil since birth but since the change in formula his tummy has not been right. He’s never been a frequent pooper, usually went every 2/3 days but since the change in formula he’s been going longer between poos and when he does go its runnier than usual. He’s a bit sick after milk ( he’s always been one for a fair bit of spit up but nothing drastic). Debating whether or not to change to a different formula as we have been through 3 tubs now and been on the new formula a few weeks with no change to his bowels. He’s a happy baby but with the way he is pooing I can tell if it’s just not agreeing with him. Has anyone else had the same issue with the new milk?