question: Hi, I hit my head at work about 2 or 3 years ago on the edge of a desk. I went to the doctors immediately and then a few weeks later got a CT scan (it was either that or an MRI - but I forget). The odd time, I ll notice it throbbing very lightly and then it ll go away. Other times, it ll be sensitive if I touch it lightly. Is this normal? Should I go back to get a referral for another scan? Thanks! -Julia