My 7 week old has been diagnosed with reflux and takes Zantac. She is formula fed and after every feeding she is extremely gassy and she will wake up every 30 minutes with pain and I have to massage her tummy and bicycle her legs for almost 30 minutes to get the gas out and it's a ton of gas. She wakes up all the time from this so it's very exhausting. I've tried gas drops and gripe water. Nothing seems to be helping. Could it be the formula? She is on Enfamil gentlease.