Dear Claritodd, hello.
Your injury seems to be just a soft tissue injury
. The pain will subside by itself in few days. You have to give second thought if you experience any of the following symptoms:-
1. Loss of consciousness
5. Seeing of flashing lights
7. Walking problems
8. Persistent headache.
If any symptom persist, contact medical proffessional help and have a scan of your head done.
I hope I am able to help you. Thanks.