Hi Sue this is Kelly. Just read your post and we are having similar trouble with our dogs. We finally had testing done for food allergy as along with bloody diarrhea they get yeast and bacteria in their stomachs constantly and we could find no reason as to why. The vet had initially put them on hills ID for sensitive stomach however since troubles continued and they actually would turn a little pink a short while after eating we did the allergy test. It’s just a blood test that they do and then see if their blood shows positive reaction to certain foods. Came back that they are actually allergic to corn, soy and potato. Apparently if your pet is allergic to something in their food or environment it can cause an allergic reaction that makes an overgrowth of yeast and bacteria in their stomach. Not sure if this will fix your babies troubles but if nothing is working maybe an allergy test might help to determine if their food is causing the problem. Best of luck to you I know how hard it can be seeing your baby struggle
