Headaches, nausea, difficulty to concentrate with previous history of two head concussions

Dear Ask The Doctor: I had an accident where I hit my right forehead on the steering wheel, lost concusion, confusion and some loss of memory on May 4 2010. I am now experiencing right forehead major headaches not sensitive to light, with nausea, confusion, difficulty with concentration, and my right eye is blood shot and the pupil is constricted. I had another concusion June 2008, I was hit in the head by a pt. loss of conciousness, retro grade amensia , difficulty retaining information.

Dear Betty: Possibly you are experiencing sequels of the two previous concussions. A severe brain injury, Concussion, like the one that you described may produce dizziness, headache, altered levels of alertness and unconsciousness. Most of the time is the result of an important and significant blow to the head that shakes the brain inside the skull, which temporarily prevents the brain from working normally. It is difficult to predict the outcome in terms of neurologic sequels, some people may feel normal again after the trauma while others have symptoms and sequels for weeks or months, it depends on each case in particular and also depends on the severity of the blow. Sometimes a person who has a more serious head trauma, may develop new symptoms over time and feels worse than before the injury, this is “Post Head trauma Syndrome”. It is important that if you start to show Post Head Trauma Symptoms, you call your doctor and get a thoroughly neurological evaluation. The post concussive symptoms include: difficulty to think, concentrate or remember; headaches or blurry vision; becoming angry or anxious for no reason; lack of interest in your usual activities, changes in your sex drive, dizziness, lightheadedness or unsteadiness that makes difficult for you to walk or standing.