I suffer from what I've dubbed "Movie Bladder".
Being in a situation where it would be inconvenient to have to use the bathroom creates the urge, regardless of actual bladder fullness. As soon as the situation is resolved, the urge vanishes. It's all in my head.
Job interview? I'll hit the bathroom five minutes before it begins. As soon as I enter that Zoom call, the urge returns. As soon as we sign off, the urge goes away.
When I fly, I love the window seat, but have too much social anxiety to ask the people in the middle and aisle seats to let me out to use the bathroom. So naturally, as I get seated, the urge comes and remains the entire flight. As soon as we land, the urge is gone. Even after getting off the plane, I'll walk past the bathrooms, and not even the power of suggestion brings back the feeling of needing to urinate.
The urge isn't completely constant, and it's not overwhelming. After all, my bladder is anything but full, since I make it a habit to relieve myself as late as possible before entering the situation. It's still annoying to deal with though, since I know it's all in my head and is not an actual bladder issue.