expression, i-adjective
feel uneasy; on edge; in suspense
Describes a state of anxiety or nervousness where one cannot relax, often because of worry about something. Used as a set phrase.
試験の結果が気になって、気が気じゃない。
I'm so worried about the exam results that I can't relax.
子
My child had a fever, and I was on pins and needles.