I guess we all misinterpreted the original post. So just one diarrhea a week? This could be from something she ate (and should not have) too many treats as well. Make sure you don't give her treats like pupperonis and bacon things. It is all junk and very bad for the tummy. Make sure to switch her very slowly while switching foods, you cannot go wrong with Nature's Variety. Thanks for the update!
I am slowing switching her food to Natural Varierty Prairie (thanks Gertie's Mom). I went to a speciality store since freaking Petsmart doesnt offer it. Shes been pooping fine so far and if she has another diarrhea problem we will be going straight to the VET and complaining.