Hello everyone! My milk disappeared after a little stress and I had to...

Hello everyone! My milk disappeared after a little stress and I had to switch the baby to formula very abruptly...We bought NAN Tripple Comfort formula! And the baby stopped pooping (for 4 days there was no stool, until I put in Microlax). After that we bought NANNI 1 formula and the child felt better (quite normal colic and overall condition), but constipation didn't go away...The color of the stool turned yellow (on NAN it was greenish-brown), but very thick...the baby is wriggling, reddening and bursting from strong crying (massage, heating pad and so on don't help...) he drinks a lot of water (up to 250ml per day, or even more)...