My most recent test result was INTJ. However, I've when I first took it I was ENFP. This turned to ENTP, which in turn became ESTJ. I've also had ENTJ, ISTJ a few times, and ESTP once or twice.
I'm confident I'm a Thinker, and I'm pretty sure I'm Judging. Recently, in the last few months, I've been pondering the Extraversion/Introversion question. As for Intuition/Sensing, I've always been unsure, mainly because I don't know what to base my Intuition and Sensing on i.e. how I am compared to others. I've met some people who are definitely more Sensing than I am, and yet some people are much more unrealistic and general than I am.
Another thing. I'm also an 8 on the Enneagram, probably with a 9 wing. I'm sp- or sx-first.