Infant GERD?...Looking for encouragement...?

My son is four months old and has had horrible reflux problems since he was a month old. We have seen two different doctors and a GI specialist. He is currently on Zantac and Reglan. Even with medication, he vomits forcefully after most feedings. He is slowly but steadily gaining weight. I know that symptoms ociated with GERD usually subside before the baby is one year old, but, I was wondering; for those of you who have had experience with infant GERD, when did your baby start to have less problems?