Glad she's okay. Dogs sure do cause us a lot of worry sometimes when they do something to themselves. I bet you're relieved.
I am very careful about asprin too. Dogs stomach mucosa isn't as tough as ours apparently. With my 100 lb GSD, my vet told me 1/2 asprin and take with food and only very occassionally. Asprin permeates the lining of the stomach and esophagus of dogs more easily than it does ours and can ulcerate those organs. (this is my understanding anyhow) I usually have some Rimydal on hand in case of emergencies but that too, I use sparingly, as it's hard on the liver if given to excess.
Anyhow, I'm very glad there was nothing serious.