Thank you all for your replies, thoughts and ideas.
She hasn't had any antibiotics. I'm using Bene Bac powder for mammals (have been since day 2) in the formula. I could try adding the type of yogurt suggested....will look for it tonight.
So, over my lunch hour I took her formula back down to 20% E-powder 80% water, Bene Bac powder, .5 cc Kaopectate...hold the whipping cream. If I recall correctly, nearly as soon as I started the whipping cream to fatten them up she started the REALLY bad diarrhea...she's had the diarrhea in one form or another since I got her feeding again...but it got REALLY bad after the whipping cream...Which would go along with almost everything IR suggested as a culprit.
Unfortunately, even if I get in to see my wildlife vet tonight, I have to take my three dogs first...to another vet.
They are itching like crazy (not mange...been there done that!) but don't have fleas or any other parasite I can see...
I'm so sick...I need a break...I wish this little girl would just get better so I can too!! ~ pout, pout ~ Ahhh, but such is the life of a wildlife rehabilitator, 'eh?
Keep the suggestions coming...I'm willing to try anything...well, 'cept voodoo.