Know what. I too had a humming in my head. I drove the electric company crazy, blaming the hum on the wires into my home. Out of desperation, and sanity, I tried everything on the market and guess what. When I treated myself for tinnitis, the hum stopped. It comes back on occasion, but I do the ear drops and in a few days, I am once again sane. Try it.
I too was in an auto accident in 2004, have had same symptoms as you. Have found that neck epidurals or branch blocks help, but still undergoing treatment options for long term relief. Pain management doctor has narrowed it to nerve damage and/or muscular.MRI has my neck as structurally fine.
Hi,
Consult an ENT surgeon,there could be an ear problem which has similar symptoms.Take a send opinion with a neurosurgeon for the numbness in your face.If you has gastritis there could be an associated head ache and a humming attributed to it.A psychiatrist can be consulted to relieve you of a 'subconscious trauma' which you are still suffering due to the accident.
Goodluck.