Baby finishes every bottle

Rachel

My baby (16 weeks) has 5 oz. six times a day, and she cries like the world is ending after every bottle. We burp her halfway through the bottle and at the end. She spits up after most feeds if we give her more in each bottle, and the pediatrician seems pleased with her intake. But another pediatrician at the same office said “and what baby actually finishes a bottle?” and well, mine does.

What can we do to keep her from screaming? She already takes Prilosec for acid reflux. She’s only 12 pounds (weight progressing normally, just small). She’s content after screaming for a bit every time.

Edit: we do use slow flow nipples. I need to try some of your suggestions!