I have a 6 month old kitten with diarreha. She checked out fine at the vet for worms, etc. The vet put her on prescription food (only comes in an adult cat food formula) to settle her stomach, which it did, and now I am slowly trying to put her back on kitten food. However, the diarreha keeps returning with the kitten food. I have tried wellness and california natural (I give her dry and wet food). Does anyone have suggestions of kitten food that might be good to try?