Wet burp or projectile vomit? Flu as in runny nose? If it's running nose, it could be post nasal drip. Th n it will cause LO to gag and vomit? If projectile vomit every feed, it's not normal. Need to see PD. If wet burp is normal.
Any diarrhoea? Could be disliking the milk or having sensitivities to it. Have you tried a hypoallergenic type of formula before? May be grumpy because nothing’s staying in.. everything is vomitted out. May be really hungry.
Previously my baby use to choke while drinking as what u say the flowing is too fast.. so i change the nipple head and the choking stops already:)
Pon Lim