What should i do if we have prolonged headache after hitting our head?

Additional signs: Following acute head trauma worrisome signs are increased sleepiness or confusion (cannot be fully aroused from sleep), worsening headache, vomiting more than 3 times, stumbling and incoordination, weakness in the arms or legs.Dramatic personality change and seizures.If these symptoms should immediately see physician. The most common symptoms of traumatic brain injury headache, amnesia and confusion.