I’ve recently tried to introduce my baby to cow and gate formula from the cow and gate ready to feed and since I’ve done this (or maybe it’s just coincidence) my baby has a 30 min episode a day of screaming, going red in the face, straining like he’s trying to push something out, arching his back and squirming in pain it’s heartbreaking. Sometimes he manages to push out a fart with all the straining but never a poo. He only poos every other day too. Can anyone help? Do you think its the formula?!