Hi Trout-lilly-
I experienced the same ordeal with my pups, except they had way more than 2 rounds of antibiotics. Youch!!! They still have some issues with soft stools and they are almost four years old. They are doing much better. Here was and still is my favorite go to site for help with their bellies. http://www.dogaware.com/health/digestive.html
If she was doing well on the SD I/D, I would probably get another bag (or two) of it, get her back to normal and try the transition verrryy sssllowwly this time. LOL! Keep up with the probiotics. You could even try something other than yogurt that has more strains of probiotics. There are some suggestions on the link I shared with you above. Along with a probiotic you could try a small amount of canned plain pumpkin or what I liked even better was canned Fruitables digestive supplement during the transition.
On that link there are several supplements that are recommended for IBS, Colitis, Leaky gut and so on. I have used just about every one of them! I still rotate and they ARE helpful. The ones I’ve tried (and still use) are: Perfect Form, Gastriplex, Vetri-Pro BD, Phytomucil, and Seacure.
You might want to try to transition to a limited ingredient food at first. Good luck!
I wish you luck as I know it is stressful. But, I get compliments on how good my dogs look all the time when we are walking them. There is hope!!!!
