My almost 3 month usually eats 6.5 every four hours. Recently, he started to cry like he wanted more after he sucked down the bottle so we tried 7 ounces but it still happened. We decided to do 6.5 every three hours but he’s still crying once the bottle is finished but now that we are doing every three hours, he spits up and it projectiles everywhere. Should I keep feeding him more even though he spits it up ? First time mom here