Which of the following could indicate a concussion?

A concussion is a type of traumatic brain injury that can occur as a result of a blow to the head or body, causing the brain to move rapidly within the skull. One of the hallmark symptoms associated with concussions is a headache. This occurs due to the sudden impact that can affect the brain tissue and lead to inflammation or other changes, making headaches common among individuals who have sustained a concussion.

In addition to headaches, other symptoms of a concussion may include confusion, dizziness, balance problems, or sensitivity to light. While change in appetite, difficulty standing, and nausea could be associated with various health conditions, they are not specifically indicative of a concussion on their own. Headaches, however, are a direct result of the brain's response to injury and are a recognized symptom in diagnosing concussions. This makes the identification of headaches as a potential concussion symptom essential for proper management and treatment.