beside oneself
idiomPart ofbeside
beside oneself — idiom
1. so filled with a strong feeling, especially worry, anger, or joy, that you canno
1.idiom
Definition
so filled with a strong feeling, especially worry, anger, or joy, that you cannot think or behave normally.
Example
Otto was beside himself with worry when his daughter did not come home on time.
Nia was beside herself with joy after she won the school singing contest.