Concussion Symptoms Reported. 1  Headache or “pressure” in head. 2  Nausea or vomiting. 3  Balance problems or dizziness, or double or blurry vision.  Bothered by light or 1  noise. Feeling sluggish, hazy, foggy, or groggy.  Confusion, or concentration or memory 1  problems. Just not “feeling right,” or “feeling  down”.
https://www.cdc.gov/headsup/basics/concussion_symptoms.html
For other uses, see Concussion (disambiguation). Concussion, also known as minor head trauma or mild traumatic brain injury (mTBI) is the most common type of traumatic brain injury. It is typically defined as a head injury with a temporary loss of brain function. Symptoms include a variety of physical, cognitive, and emotional symptoms, which may not be recognized if subtle.
https://en.wikipedia.org/wiki/Mild_brain_injury
Post-concussion syndrome. Post-concussion syndrome, also known as postconcussive syndrome or PCS, is a set of symptoms that may continue for weeks, months, or a year or more after a concussion – a mild form of traumatic brain injury (TBI).
https://en.wikipedia.org/wiki/Post-concussion_symptoms
But when you hurt your brain — what doctors call a brain injury or concussion — there's often nothing to see. That can be a little scary because brain injuries can be far more serious than a scrape or broken bone. People hit their heads all the time — during sports, car accidents, and falls.
http://kidshealth.org/en/teens/concussions.html
Mild TBI Symptoms. A traumatic brain injury (TBI) can be classified as mild if loss of consciousness and/or confusion and disorientation is shorter than 30 minutes. While MRI and CAT scans are often normal, the individual has cognitive problems such as headache, difficulty thinking, memory problems, attention deficits, mood swings and frustration.
http://www.traumaticbraininjury.com/symptoms-of-tbi/mild-tbi-symptoms/
Here are some signs you might have a concussion: 1  You feel dizzy after bumping your head, and it goes on for more than a couple of minutes. 2  You have a headache that goes on for more than a few minutes. 3  Things look blurry or you have trouble focusing.  You throw up or feel like throwing up.
http://kidshealth.org/en/teens/concussions.html
You should continue to check for signs of concussion right after the injury and a few days after the injury. If your child or teen’s concussion signs or symptoms get worse, you should take him or her to the emergency department right away.
https://www.cdc.gov/headsup/basics/concussion_symptoms.html
Children and teens who show or report one or more of the signs and symptoms listed below, or simply say they just “don't feel right” after a bump, blow, or jolt to the head or body, may have a concussion or more serious brain injury.
https://www.cdc.gov/headsup/basics/concussion_symptoms.html
Post-concussion syndrome. (Redirected from Post-concussion symptoms) Post-concussion syndrome, also known as postconcussive syndrome or PCS, is a set of symptoms that may continue for weeks, months, or a year or more after a concussion – a mild form of traumatic brain injury (TBI).
https://en.wikipedia.org/wiki/Post-concussion_symptoms
Symptoms of concussion. Symptoms of concussion can be mild to severe, and in some cases emergency treatment may be needed. The most common symptoms of concussion are: confusion, such as being unaware of your surroundings, a delay in answering questions, or having a blank expression. headache. dizziness. nausea.
http://www.nhs.uk/conditions/Concussion/pages/symptoms.aspx
slight concussion symptoms
The symptoms of slight concussion are headache, difficulty thinking, memory problems, attention deficits, mood swings and frustration. Headache, difficulty thinking, memory problems, attention deficits, mood swings, and frustration are the symptoms of slight concussion.