To me, this sounds like reflux w/ the smacking and licking - this is usually treated w/ either Pepcid or Reglan. He could also have IBD/IBS in addition though. Did you change foods or anything?
__________________ ~ A friend told me I was delusional. I nearly fell off my unicorn. ~ °¨¨¨°ºOº°¨¨¨° Ann | Pfeiffer | Marcel Verdel Purcell | Wylie | Artie °¨¨¨°ºOº°¨¨¨° |