Since the bland diet hasn't helped it subside, I would at this point consider the possibility that there is a possible infection or other metabolic issue causing the diarrhea.
I would recommend a vet exam. Your vet will likely want to have a fresh fecal sample to test for parasites to begin with..... This may give you an answer right away. If nothing is found, your vet may either try some medications to help normalize the intestinal flora or recommend some bloodwork to make sure that there isn't an underlying issue like hepatitis, etc. I would highly recommend having the bloodwork done, especially since she is shaking today.
You dont' need to rush to the vet today, but I would get an appointment as soon as possible.
I hope that this answers your question! and helps you decide what to do!
she only shook once, what makes it hard is that we are in another province and sent her home with a frd, so have been conversing with the frd, she only shook the once... i just spoke to her and the dog is going for a walk and barking and wagging, appears very happy, so not lethargic....can
hepatitis or parasite disappear on their own.....