K.S.
Hi G.,
I know you've already gotten lots of advice, but I'll put in my two cents. I'm not a fan of Dr. Brown's. I have a couple of friends who swear by them, so I started out with them with my son, and he was REALLY gassy. I switched to Playtex drop-ins, and the problem was solved. I'm convinced it was the bottles since I didn't switch formula at all. You may want to buy a different kind of bottle and see if that helps. Good luck!