Symptoms of concussion
Symptoms The symptoms of a concussion can be subtle and may not occur right away. Symptoms can last for days, weeks or even longer. Common symptoms after a mild traumatic brain injury are headache, confusion and loss of memory, known as amnesia. The amnesia usually involves forgetting the event that caused the concussion. Physical symptoms of a concussion may include: Headache. Ringing in the ears. Nausea. Vomiting. Fatigue or drowsiness. Blurry vision. Other symptoms of a concussion include: Confusion or feeling as if in a fog. Amnesia surrounding the event. Dizziness or "seeing stars." A witness may observe these symptoms in the person with a concussion: Temporary loss of consciousness, though this doesn't always occur. Slurred speech. Delayed response to questions. Dazed appearance. Forgetfulness, such as asking the same question over and over. Some symptoms of a concussion occur right away. But sometimes symptoms may not occur for days after the injury, such as: Trouble with concentration and memory. Irritability and other personality changes. Sensitivity to light and noise. Trouble with sleep. Feeling emotional or depressed. Changes in taste and smell.