Anyone had loss of smell/taste that recovered soon (months)?

I sustained a head injury last Wednesday by impacting the top front right side of my head against a wall. I have noticed in recent days changes in my sense of smell/taste which I only confirmed tonight that I have much reduced sense of both. Some smells appear different or much ‘duller’. I am now worried that things may get progressively worst and I may lose it altogether. On looking at the subject, it seems fairly grim and looking at years for recovery, also based on others experience. I see experts opinion is that if it does recover well then the first 6-12months is best. Just wondering anyone has seen recovery in months rather than years? Just looking for some hope on the subject I guess.