I know I experience this every now and then. I had someone tell me once that if you can't explain it, you don't really know it. I disagree. I think there are things you can know but have a hard time explaining. For example, I might get a sense that someone is a certain MBTI type but if you ask me to explain my reasoning, all I can say is there is a certain vibe they give off or they happen to remind me of someone that I know is a certain type.
Do you think you can know something but not be able to really explain it?
If so, how often does this happen to you?
Is this type related? I'm guessing its probably more common in N types, and maybe in F types. I would guess that Ni dominants are most likely to experience this sort of thing.