Welcome to healthcare magic!
If you did not have any vomiting
or black out then there is no need to worry much.
I think you should see physician who will conduct a physical examination and get base line investigations like Electrocardiogram and an Xray of skull.
This work up is expected to reasonably exclude serious head injury
I hope this advise would be helpful for you.
Still if you have any queries or doubts, please write me back,
I would be happy to solve them.
Wish you a great health!