He wasn't feeding properly so they thought he might be dairy intolerant as he was refusing feeds, screaming at every feed and pulling away from the bottle, also posseting far more than was usual. Turns out it was reflux all along bless him.
Don't take my word for it though hun, you may find neocate fine, they say most babies adjust after 3 days, you know what men are like, mines no different, big wuss bless him.