Dizziness; a sensation of lightheadedness or the room spinning, often caused by faintness, inner ear problems, or anemia.
朝起きたらめまいがして立てなかった。
When I woke up in the morning I felt dizzy and couldn't stand.
医者に相談したらめまいの原因は耳の炎症だと言われた。
After consulting the doctor I was told my dizziness was caused by inflammation in my ear.
高いところに立つとめまいがする人もいる。
Some people feel dizzy when standing at high places.