Hello doctor.. my son is 3.5 years old and from last 4-5 months he is doing very frequent vomiting mostly in the night ( after he sleeps and then wake up around 1 or 2 pm and vomits out). Earlier i thought that may be milk doesn’t suit him in the night so I stopped giving him milk since last 2 months but even after that he vomits almost every other day . Please suggest what should I do .