M.L.
Maybe try patting him a harder not too hard obviously but maybe just a lil harder than what you have been. Either that or maybe if you notice he is having trouble burping try rubbing his tummy to help move the gas out. If you have any questions feel free to e-mail me. My lil guy is now 3 but maybe I can help you. My e-mail address is ____@____.com. I'm 25 but was 22 when I had my lil guy so I know how it feels.