When I was younger I frequently gave into emotional impulses. I felt like if I was mad there must be a reason that I was mad so I was justified in lashing out in whatever manner I felt proper. In order to rid myself of that behavior I learned to second guess any emotions. I would ask myself: could I identify the type of emotion I was feeling? What was the source? What had prompted the emotion? If I didn't have the answer to these basic questions I would ignore the emotion, writing it off as being (at least probably) an emotional hallucination.
I'm sure that many emotions are "hallucinations" and I'm sure that everyone must experience this to a certain extent. But by ignoring any emotion that I could not explain to myself, I am sure I was also being over-inclusive, thereby excluding legitimate emotions from which I simply lack the ability to contextualize and extract any real meaning. I am unable to separate the wheat from the chaff. Consequently, I am forced to throw the baby out with the bathwater (pardon the mixed metaphor).
Sometimes I wonder if this is the core of what I generally perceive as being self-aware or not amongst the sociopathic population, i.e. the self-aware ones in my eyes are the ones who have realized that their emotions deceive them and vice versa. It's also why I generally consider narcissists to be unaware, because in my eyes they are constantly acting on bastard emotions that they believe justify reprehensible behavior.