Schlep,
I think I would take her to the vets as soon as you can. Do you have a thermometer? Can you take her temp? You can use a human one, but, it now becomes an animal one only...he he he. I noticed Binx was shaking when he was ill. Very lethargic, too.

Don't worry about your feelings about the doctor for tomorrow. Just get Kiba in there. AND, if you can, encourage her to drink lots of water...

Good luck, keep us posted.