Full Idea
It is not always easy for us to determine what emotion (or even physical sensations) we are experiencing.
Gist of Idea
We often can't decide what emotion, or even sensation, we are experiencing
Source
Jaegwon Kim (Philosophy of Mind [1996], p. 18)
Book Reference
Kim,Jaegwon: 'Philosophy of Mind' [Westview 1998], p.18
A Reaction
Confused sensations are, I would have thought, rare. Emotions, I think, are only confused when they are weak, and then a lot of the confusion is merely verbal. Our body and intuitions understand the feeling well enough, but we lack the vocabulary.