めまい目眩memaiめまい眩暈memaimeまいmaiげんうん眩暈gen'un
1.

A state of physical discomfort characterized by a sensation of spinning or losing one's balance, often resulting in disorientation and an unstable feeling in the body.

2.

A temporary experience marked by an illusion of motion in the surrounding environment or oneself, which may lead to unease or a feeling of lightheadedness.

Example:

「ちょっと目まいがするわ」「顔色が悪いぞ。一日休んだほうがいいよ」