Brief Answer:
Get investigated if you have below mentioned danger signs

Detailed Answer:
Hello,
I have gone through your question and understands your concerns.
Severe nature of head injury which require imaging is usually associated with loss of consciousness , seizures, vomiting, severe headache, bleeding via nose or ear, motor deficit, visual blurring, diplopia.
If you don't have these symptoms then you may recover will .
You should get a consultation of doctor for your wound and requirement of brain imaging.
Hope you found the answer helpful.
Do get back to me for further queries .
Regards
Dr N Kumar
Neurologist

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