What should I do? I am mixed between; growing teeth, intolerances, gastro?

Hello, I have been on a no beef protein, no soy, no cow's milk protein diet since he was 3 weeks old, my 11 month old baby has been on nutramigen for over 2 months (I am not breastfeeding at all now). We reintroduced bovine proteins and soy and it seemed to work. Introduction to daycare, I no longer have control over what she eats. I had tried cow's milk (yogurt, small amount of cooked milk, small amount of cooked cheese) and it seemed to work. For the past week, soft stool ++ 2x a day, 2 teeth came out, no fever. Her janitor refuses to take her back until her stools return to normal for fear of gastro.