Be sure and read the ingredients on everything. Make sure there is no corn, no wheat and no by-products. The corn and wheat have no nutritional value and can cause allergies...the by-products are the parts of animals that aren't used for anything else and aren't healthy for the babies.
Maybe your baby is allergic to something in the Orijen since it is new to her...
I would suggest going back to whatever you were feeding her before the tummy upset and start over. She may just be super sensitive and need an even longer transition. Good luck
