He is 7 weeks old and formula fed. He has been fine until this past week where he cries every feed, straightens his body out whilst kicking and cries and screams. It’s making feeding time a battle and something I dread. He gets about 3oz down but takes his time. I’ve switched him to a number 2 teat and tried comfort milk but to no avail. Can’t get an appointment at the GP’s. Anybody else experienced this? I’m at my wits end 