I had a closed head injury from a fall 5 weeks ago, and seem to be sneezing with increasing frequency. At first, it just seemed that I felt the tickle of a sneeze, but no sneeze came. Now I sneeze. I also realize I have anosmia, but I believe I was able to smell a few weeks ago. I don't feel like my nasal airways are entirely clear at all times, but this comes and goes. Odd taste in mouth. My CT from 2.5 weeks ago reported most blood to be absorbed and paranasal and mastoid to be clear. What is going on?