5 mo- gave ds organic grinded oats and he did fine.
5 1/2- did fine on same oatmeal.
6 mo- did fine on same oatmeal.
6 1/2- projectile vomit for 3 hours several hours after consuming the grinded organic oats. Took him to the ped. who chalked it up to a stomach bug.
Almost 7 mos- tried the oatmeal again and same projectile vomit occured.

A week later I bought earths best oatmeal, and after eating a spoonful, he gagged and vomitted, so i stopped. 2 days later, i tried gerber, and same thing happened.

Do you think its a sensitivity or an allergy to oats, or just doesnt like it?

He did well in the beginning with it, which is why I am confused. It has never happened with any of the fruits or veggies i make. He did ok with barley but didnt love it. He has never had rice.