Definition
Feeling 'light-headed' means you have a sensation that you might faint. It's as if your head feels floaty and disconnected 😵💫. This is often due to a drop in blood pressure or dehydration. It's similar to being dizzy but less intense than full vertigo. You might experience tunnel vision or feel weak in the knees. Unlike giddiness, it's usually not a pleasant feeling. Light-headedness can also be a symptom of something else, like a cold.