Headache and diziness after injury.

Hello. 7 days back,I got hit by a plate accidentally while playing with children at the bregma portion of the head. Consulted a neurologist and a CT scan was performed almost after 20 hours of the hit. According to the neurologist the CT scan was completely normal. He recommended Naxdom 250 twice, tryptomer once and neurobion once a day for 3 days. But still persistent mild headache and heavy dizziness.as a result feeling sick all the time . Can it be something serious related to brain. CT SCAN after 20 hours of injury was normal. Please help as I am very worried that my head injury was serious. Should I go for MRI head..Also bp 140/90. Taking metolar xr 25 from 7 days. Earlier was taking metolar xr 12.5. From Chandigarh hence cold weather.. please help regarding the above mainly head injury