My 8 week old son has been using Dr. Browns wise mouth just about since day 1. He’s had gas retention issues, and lately, it doesn’t seem like his bottles are helping with that issue much. What do y’all use? Have you had a gas retention problem with your LO while using DB bottles and switched to something else and saw a difference? He will go sometimes without burping and once he does, they’re window shattering lol. I’m desperate to help out my little guy because he gets so angry when the hiccups come and the gas is in his belly.