My 11 week old all of a sudden is loosing his mind for food every hour and a half to two hours but he is eating 5 to 6 oz. If the bottle is not ready he will twist his head to the side and scream/ cry none stop until he is feed. He gets stiff and red.

Last week we were fine. He was eating every 2 to 3 1/2 hours. He is Bottle fed formula and Breastmilk.

Is it a grow spurt or maybe reflux? He has always spit up his food no matter the amount he eats. We are starting to loose our minds here.