Thank you for posting your query.
It is unfortunate that you have problems for so long after the head injuries, and moreover, no proper diagnosis has been made.
Your symptoms are suggestive of concussion
and all the symptoms can be explained on its basis.
rules out any major problem or injury
in the brain.
Abnormal sense of smell is related to partial damage to olfactory nerves or its central connections.
We expect gradual recovery in your symptoms, however, it may not be complete.
I hope it helps.
Please get back if you require any additional information.
Dr Sudhir Kumar MD (Internal Medicine), DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad,
My personal URL on this website: http://bit.ly/Dr-Sudhir-kumar
My blog: http://bestneurodoctor.blogspot.com/