SD - is it that the T can't keep up with your thought process? Are you a quick thinker? I know I am, and my brain easily flies from topic to topic making abstract associations, finding patterns, double back, leapfrogging ahead... it's hard to slow down and explain to another human, but not impossible.
Maybe T follows you from A to B, but doesn't make that leap to C. Could that be it?
I just wanted to add that I know people who feel misunderstood in life because they don't know how to explain the abstract connections their mind makes... but I always feel like I can help them slow down their brains long enough to explain how they got there... because I do it all the time.

Its like they're just not aware of HOW to slow down their fast brains. Cuz I know it's hard to slow down those connections because they come so naturally. Believe me, I KNOW it's hard and struggled for years, but can be done because I do it now and wasn''t able when I was a teenager.