Praying for you & Rainbow and that you will have more answers from the vet today.
Since you like the EVO - what about switching her to Innova with less protein?
Ingredients:
Turkey, chicken, chicken meal, barley, brown rice, potatoes, natural flavors, rice, chicken fat, herring, apples, carrots, cottage cheese, sunflower oil, dicalcium phosphate, alfalfa sprouts, egg, garlic, potassium chloride, choline chloride, calcium carbonate, direct-fed microbials, vitamins/minerals
Guaranteed Analysis:
Crude Protein (min) 24 %
Crude Fat (min) 14 %
Crude Fiber (max) 3 %
Moisture (max) 10 %
Linoleic Acid (Omega-6 Fatty Acid) (min) 2.6 %
Vitamin E (min) 300 IU/kg
Vitamin C (min) 500 mg/kg
Omega-3 Fatty Acids (min) 0.5 %
Total Microorganisms (min) 90,000,000 CFU/lb
I am so sorry you are going thr this. Hugs for you and give Rainbow a snuggle from me