hi my son is always getting cough and vomiting when he is having food.. (he used to have more water when he is having food) always these only happens .. it happens in mrg breakfast n afternoon lunch n night dinner.. always he is getting cough and vomiting all the food.. plz could u say what happensn why it happens like that and also suggest which type of food have to give to him ( even iam nt giving spicy foods also) but tills happens the vomiting