Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
Head injury can manifest in different ways. Since your
CT scan is already showing slight bleed in
occipital lobe, it is possible that there was concurrent other injuries that can manifest with the time.
One of these is echoing in ear that indicates there is definitely an internal injury to the ear apparatus.
Hence it is imperative that you consult your Doctor immediately, get an ENT examination done to be sure about what exactly is the problem and get treated accordingly.
You may need a combination of
MRI and CT scan of the mastoids and review of the
brain injury.
Insist on proper evaluation, examination and investigations.
Take care.
Wishing you all the best.
Hope I have answered your query.
Let me know if I can assist you further.