when my baby was 4 months, I got the perfect prep machine. did everything correctly..not hard really. but since using it he always had really abnormal poop, so my hv recomended stop using it to see kt if goes away, so I did and his people went back to normal, I then startef using it again and they went wierd again (almost diarrhea) so I stopped and it went normal again, hes 8 month now and I havent used it in months just wondered has anyone else experienced this?