DOG ATE CHOCOLATE CRUMBS D:!! HELP!?

OK I ate a chocolate pretzel and the crumbs fell on the floor and as I was going to get a small broom and the dustpan, MY DOG was eating the small crumbs! She was licking the floor! They were centimeters but i don't know!!! She is a toy poodle and she is 2 years old and she is pretty thin(even though she eats a lot) and she is healthy! What do i do!? The vet clinic is closed right now! I don't want her to get sick D:!!! HELP! WHAT DO I DO D:?!