Hi, Valerie, Warming the peg tube nutrition and slowing down the amount that goes in at one time should help. Also, experimenting with the pain meds should help. I would be comcerned about the lack of h2o intake. Have you tried unflavored Pedialyte between feedings? Buy it in the Children's section of the gro store- it will help keep him hydrated. He can do 6 to 8 oz at a time- of and on all day long. Good luck- Amy in the Ozarks