What you are describing is not a part of the brain's natural aging process. It may be a result of your 2003 injury, but you need further neurological testing to confirm. You should schedule this testing asap, as it is important to rule out a more serious cause, such as Creutzfeldt-Jakob disease . (CJD) is a rare, degenerative, invariably fatal brain disorder. CJD is characterized by rapidly progressive dementia
. Initially, patients experience problems with muscular coordination; personality changes, including impaired memory, judgment, and thinking; and impaired vision. People with the disease also may experience insomnia
, or unusual sensations. CJD does not cause a fever
or other flu-like symptoms. As the illness progresses, the patients' mental impairment becomes severe. They often develop involuntary muscle jerks called myoclonus
, and they may go blind. They eventually lose the ability to move and speak and enter a coma. Pneumonia
and other infections often occur in these patients and can lead to death.