Thanks ladies!!! This has been a real trying experience. So glad to hear others have experienced this and thanks for everyone's input. I hadn't thought about searching out an ENT...I think we may do that. As for how we've been supplementing his feedings....we've actually done both the bottle and the tube. The tube didn't always work well for us so we did the bottle. He's gone back and forth farely well...I've also used the nipple shield if he was having troubles. So we've done it all. My husband is also looking at buying the Lactaid Supplement system (bag vs tube).