What is vertigo typically characterized by?

Vertigo is primarily characterized by a sensation of spinning or the feeling that you or your environment is moving when it is not. This sensation often manifests as severe dizziness, making option A the correct choice. Individuals experiencing vertigo may struggle to maintain balance or feel as though they are tilting or swaying, which is intensified by head movements or changes in position.

While nausea can accompany vertigo due to the distressing nature of the experience, it is not a defining characteristic of vertigo itself but rather a symptom related to it. Increased energy levels and muscle weakness are conditions that do not align with the clinical presentation of vertigo and are therefore not relevant to its definition. Understanding vertigo's core symptoms, especially the severe dizziness aspect, is essential for identifying the condition and providing appropriate care or seeking further medical evaluation when needed.