I don't know if this would help at all but have you tried Tums? My Renie has some stomach problems and has had lots of testing including barium x-rays, scoping, ultrasound, etc. I give her Zantac or Pepcid twice a day, Reglan when she starts the gulping sound or seems uncomfortable, and Carafate for a few days after each episode of vomiting. The other day she was laying by my computer desk and her stomach sounded like there was a tornado in it. She had already had Zantac and Reglan earlier so I broke up a Tums tablet and gave it to her and within a few minutes her tummy noises stopped.