hello doctor I have a 3 months old baby he used to vomit often like ina 2 3 days once and he used to vomit all the milk which I fees him, so just wanted to know is this normal and what should I do after he vomit should I continue to feed or should I stop? also I wanted to know that he don't poo every day sometimes 3 4 or 6 days later also what should I do please tell