Japanese phrase
気が気ではありません。 ki ga ki de wa a ri ma se n
Meaning
I am extremely worried.
When to use it
Expresses intense worry about something. It shows that a person cannot stop thinking about a troubling situation and sounds stronger than a simple statement of concern.
Example dialogue
明日の面接、気が気ではありません。 asu no men setsu ki ga ki de wa a ri ma se n
I am extremely worried about tomorrow's interview.
大丈夫ですよ。練習しましたから。 dai jō bu de su yo ren shū shi ma shi ta ka ra
It will be fine. You practiced for it.