vertigo
//ˈvɜːtɪɡəʊ//
Noun
1
A sensation of dizziness and disorientation, often accompanied by a feeling that oneself or one's surroundings are spinning or moving.
She experienced vertigo when she looked down from the top of the tall building.
2
A fear of heights or high places, especially when accompanied by dizziness.
She couldn't climb the ladder because of her vertigo.