HI, I fell down from bike and hit my head back to road. at that time, i ddnt get any sense of pain. i went to office. after 2 hours, i got pain in my head and vomiting sensation. i was admitted to hospital and was treated. after 6 months, now, i am getting pain in my head, whenever, i am thinking. i am not able to view my desktop screen continuously. can plz suggest me, is there anything wrong.