Faintness and Lightheadedness

Faintness noun - The quality or state of lacking physical strength or vigor.

Lightheadedness and faintness are semantically related in dizziness topic. In some cases you can use "Lightheadedness" instead a noun "Faintness", when it comes to topics like vertigo, whirling sensation.

Lightheadedness noun - A reeling sensation; a feeling that you are about to fall.

Faintness and lightheadedness are semantically related in dizziness topic. You can use "Faintness" instead a noun "Lightheadedness", if it concerns topics such as vertigo, whirling sensation.