I'm sorry your dog is not feeling well.
Was there bloodwork done, do you know what tests, and what the results were?
It is a good sign that she ate and hasn't vomited yet, if she gets through the night without vomiting, that would be even better.
You mention a scan? was this ultrasound? were x-rays taken?
did you hear words like gastroenteritis, pancreatitis, or colitis?
Is the diarrhea frequent (every 2-3 hours), small amount, straining, blood or mucus
Only 2-3 times in 24 hours, no straining, large amounts, no blood or mucus?
can you take her rectal temperature? a plastic digital thermometer works well and is fairly quick.
I look forward to your response