I was having the same problem too. I have started him for solid food from 5 1/2 months. At the beginning, he seems good......2 oz milk with 2 scoope of milk powder spoon cereal mix...then he can have 5 oz milk with 5 scoope of cereal......that has been a week already. But recently, he can't eat...doesn't want to open his mouth to eat....and when he eats, he vomit....Should I stop for a while or should I go on with solid, but just cut down the amount????