Well, we got our answer regarding Grace (non greyhound) doing the smacking her lips and swallowing hard thing. We went to UWMadison and had a consult. He told us all the possibilities and suggested an Esophogram with a CBC. Blood work was perfect but the Esophogram showed a hiatal hernia and a sphincter at the bottom of the esophagus that didnt close tightly. We watched the video and it was interesting to see food going down and then coming back up. He did say hiatal hernia surgery is no guarantee. Has anyone had success with surgery for it with their dog?? He put her on Prilosec 40mg, Cisapride, and liquid Carafate. Anyone with experience?