I'm looking for a word to describe the feeling when you think you've reached the bottom of the staircase and there's actually one more step and suddenly you're falling, or when you swing a bat and think you're going to make contact but miss the ball, or think there's another drumbeat coming but there's silence instead. The feeling of your expectation misaligning with reality at a particular instant.
Seems like the kind of thing you might find in the Dictionary of Obscure Sorrows. I'd love to know if there's anything like this or close in English.