Hi, I Had A Bad Head Injury To The Back

hi, I had a bad head injury to the back of my head, two weeks ago Sunday, I did go to the emergency room, and I did have a concussion. This vertigo I am having won't go away, even with those motion sickness pills, and a small dose of Valium that is thought to sometimes re-adjust those crystals that are in the inner ear for balance etc. I am miserable. Any suggestions?