How to determine you have a concussion?

A physician can: Make the diagnosis. Did you lose consciousness? You can have a concussion with or without loss of consciousness. Headache/ pressure of head? Are you unable to recall what happened? Do you feel dizzy or have ringing in the ears? Confusion or slurred speech? Nausea or vomiting? Extreme fatigue? If you believe you have a concussion please seek prompt medical care.

Depends: The effects of concussions can vary and be unpredictable. It depends on the severity of the injury. The symptoms can include headache, dizziness, vision change (blurred vision/ double vision), nausea/vomiting. If your symptoms or headache are severe, or if you have a loss of consciousness, you should get evaluated immediately.

Formal evaluation: Concussion occurs after head injury. There are doctors (specially trained physiatrist, neurologist, neurosurgeon) who can administer tests and evaluate you to see if you suffered a concussion. Based on your symptoms, such as headaches, nausea, fatigue, poor concentration, irritability, more emotional, sleep disorder, the doctor can make a diagnosis of concussion and how to treat it.