I personally am an INTJ, which is why I ask, but I suppose this may apply to anyone with a thinking preference: How often are you considered to be significantly emotional, to the degree that it is observable by others, they comment on it (more than once?) and becomes somewhat iconic of your character(!). The reason I ask, is because I've earned somewhat of a reputation at my work for being quite "dramatic," which at first I found kind of odd, as I had never previously seen myself as such, although I knew I could be prone to some unusual/animated behavior if the mood struck me. I'm starting to see it now, though. I tend to enjoy playing with melodrama, and kind of blowing things up (although in an absurd way, humor and overall effect are my motivations,) and it is not so much "drama" in the social/peer sense, and more just in the sense of conduct.
Granted a large part of this has to do with how comfortable I am in any given situation. I tend to only exhibit this behavior when I feel quite comfortable with people. Usually girls, as I tend to find them not as judgmental, and I can just speak random shit off the top of my head without making me feel too weird. At work I don't really care what they think of me, so I generally try to create the lightest atmosphere I'm capable of generating, naturally. It makes work a less laborious task, and I don't really care what their judgments of me are, anyways, and gaining reactions from people can be amusing until I've done it too many times and it becomes ho-hum. I tend to be very frank about nearly anything (including expressing those whimsical, passing feelings I seem oddly prone to), or any observations or judgments I have on things or myself. Though I can also embarrass very easily, if someone touches on one of my relatively narrow areas of insecurity (generally those things within the social sphere.)
What I find odd is how people see me as more temperamental than I seem to view myself. Granted I'm kind of prone to lame melancholic shit like anomie and various existential and philosophical crises, emotional/directional ambiguity, and temporary highs/manias. I can also lose interest in shit very quickly, and can be prone to a kind of temporary passion/excitement that can disappear all too quickly. Oftentimes my moods can be offset or influenced by things of seemingly little influence (though to be fair I'm probably a little bit too self-indulgent at times). None of this sounds particularly like iconic Rational behavior, so I kind of wonder how common this is. I'm quite sure I'm Ni dominant, but my Fe is kind of terrible unless I funnel lots of mental resources into it. Te tends to come more naturally to me, so I'm fairly certain I'm INTJ. I don't think I have a mood disorder, or anything, but I'm definitely not the most consistent person in the world. I wonder how much of this boils down to personal quirks, and how much actually falls within type theory.