Need help with vomiting GSD
My shepherd Dara has been sick this past month with near daily episodes of vomiting. She had lost 10 pounds but recently gained half of that back. Over the past year or so she would have occasional episodes of throwing up that would last a couple weeks but then subside. I've tried several different dog foods including some of the best reviewed ones like nomnomnow and THK. I've tried every type of protein as well, chicken, beef, and fish. The vet thought it could be some food allergy so we changed her dog food to prescription Hills d/d. Again she got better for a couple months but this past month has been the worst yet. Near daily vomiting and loss of apatite. I've gotten her blood work done, all was normal besides some elevated white blood cell count. An ultrasound, all was normal there. And an endoscopy, her esophagus was incredibly swollen to the point where they couldn't get the camera fully into her stomach and it had ulcers on it. They took some biopsys and those just came back yesterday but there was no signs of diseases and just some inflammation. The vet has me giving her medication to get rid of the ulcers as well as a starting a temporary steroid to try and stabilize her and then possibly try another different dietary option to keep the inflammation down. The past 2 weeks I've just been making her home made food with chicken or beef and sweet potatoes since she won't eat the prescription food, which I don't blame her it doesn't seem very tasty. Does anyone have any suggestions or experience with something like this? The vet has been unable to diagnose anything for sure. We thought maybe IBD but nothing from the ultrasound or biopsy lead to that.