I wouldn’t be worried. My 19 month old has had some brutal bangs to the head (obviously accidental)😫 I’ve gone into massive panic and always followed advice. One thing I learned was if there swelling comes out (egg) it’s a good thing. If it’s a dent, not so good. But no other symptoms, and being her normal self she will be fine! Just keep monitoring🥰
My son tripped running and landed face first on into the side of his cot. When I picked him up his nose was deep purple and looked deformed. I rushed him to A&E and other than a bruised nose he was absolutely fine - i couldn't believe it with the way he fell and the sound it made. What they checked for was any physical deformity on the skull and face, fluid from the nose or ears, bleeding from nose or ears, vommitting and any changes in behaviour.
I wouldn't be worried based on what you've said! Sometimes the bang makes the injury sound a lot worse than it was. Sounds like you are looking out for all the right things so just keep an eye on her x