You're probably in flux due to the dawning of Aquarius.
Anecdotally, I've heard a common complaint against MBTI is that it often changes by just retaking the test. (And it's horribly unfalsifiable.)
Sensors are more in the moment, and intuitives like to abstract. It'd be difficult to make a variable for that one.
Interestingly, I got Extrovert even though I tested 19/1 in favor of Introvert on the real test. Must have too many posts with the word "friend."
I think its because I tend to write about what I'm not used to, good at, or what needs to improve either in a form of a complaint or a resolve to do better.