HI Ramona-
Sorry to hear you and your pooch are going through this. My dobergal has the same issues, and like yours, grain free did not make a lick of difference. I tried foods from “low level” up to home cooked, raw, grain free, grain inclusive, commercial raw etc etc. We would find a food, she would do well on it for a few months, and then suddenly, back to the same issues. For mine, probiotics and enzymes did not work, but for others they do. Unfortunately, its hit or miss. Recently, I put her on Abady granular, with their canned, and now a touch of dry(dave’s for sensitive stomachs) and so far so good. I think the dry causes more of an issue than the granular or canned however and may cut that out all together.
A quick fix to rest her digestive tract may be to have your vet prescribe metronidazole or tylan powder-tylan can be used long term, not the metronidazole.
