Thank you for the query.
If you have not lost your consciousness, no vomiting
, no dizziness
, no headache most likely the trauma were not strong enough to cause some serious consequences. However, some internal head bleeding may give symptoms after few hours or days. So you should be aware of mentioned symptoms and visit your doctor in such case.
If the wound is closed so the verges of it are in close contact, stitches wont be necessary and it should heal by its own.
Hope this will help.