Post Concussion Syndrome - PCS
Post-concussion syndrome, occurs when concussion symptoms last beyond the expected recovery period after the initial injury. The usual recovery period is weeks to months.
You don't have to lose consciousness to get a concussion or experience persistent post-concussive symptoms. In fact, the risk of developing persistent post-concussive symptoms doesn't appear to be associated with the severity of the initial injury.
Psychological conditions, which are present in about half of people with PCS, may include irritability, anxiety, depression, and a change in personality. Other emotional and behavioral symptoms include restlessness, aggression, and mood swings.
In most people, symptoms occur within the first seven to 10 days and go away within three months. Sometimes, they can persist for a year or more.