Hello, this is Dr. Bruce and I would like to help you with Flossie.
I'm sorry that she isn't feeling well this morning.
I would recommend checking a few things on her. Look at her gums. They should be a light pink coral color. If so, that is good. White would be bad.
Check her for any wounds or bleeding. Take her out of the cage and walk her a bit. Make sure that she isn't limping.
If all of these signs seem normal, then it is likely that she is merely anxious over everything that has occurred. This is a lot for a puppy!
If so, then I would just leave her be for the day and let her sleep it off. If she seems at all painful, then you can give her some aspirin at a dose of 5mg per pound. This can be repeated every 12 hours.
If she is not back to normal by tomorrow, then run her to the vet for evaluation.
I hope this helps and that Flossie is feeling better very soon. If you would like to continue this chat, please reply to this post and I will get back to you as soon as possible.