gabby7, I hope your angel is doing well!
I have seen this happen more than once with Yorkies I have/had. Our problem is they would jump up on the couch and go full force into the coffee table we had as it had an overhanging top they couldn't figure out.
It only happened a few times but seeing something that tiny jump up with full velocity and hitting the underside of the coffee table is terrifying.
We kept a close watch to make sure they were ok. They would be "dazed" for a few minutes but business as usual. Having said that, as stated above, if your dog starts acting out of character I would take it to the vet. Ours suffered no ill effects but wow....it is so sad to see that happen to such a small dog.
Good luck and she should be fine! They are tough little dogs and seem to have a good noggin on them.