
Be on edge
Emotional State
Used to express a negative feeling, usually not a positive excitement or anticipation.
I've been on edge ever since I heard the storm warning.
Trigger Warning
Often follows after a specific event that causes worry or unease.
She's been on edge since the argument with her best friend.
Temporary Feeling
Implies a temporary state, not a permanent trait of a person.
Mark's usually calm, but he's been on edge waiting for the test results.