sorry it's been so long since a post but things are looking up. We increased the Zantac dosage which helped but we did 3 nights of the pu/pd, leave the room, go back pu/pd. I leave the room b/c it gets so much worse with me in there. He's able to calm himself with his thumb much better without me in the room. So... we've stopped the 2:30 wakings and I'm back to the dreamfeed around 10:30 or 11:00. Occasionally he sleeps until 7 or 7:30. As of late, he's up at 5, i can feed him and he's back to sleep. I'm trying however to do the pu/pd thing for the 5 am wakings as well and maybe we can get those gone too.
Thanks for the help and support!! There is some sleep in sight! I never thought it would come after 6 mths of constantly waking 2-3 times a night.