I'm not sure if this is exactly the sort of insight you're looking for, but personally I find that long periods of coding and being "in the zone" tend to affect my speech in the same way. Essentially, I tend to try to be as precise as possible when speaking, often going out of the way on increasingly specific tangents or finding the most elaborate examples to demonstrate what I mean. These tangents and examples always come back to the main point (so I'm not just wandering off), but when considering conversations in retrospect I find that they tend to just muddy the point I was trying to make.

Written language and code can afford the verbosity, because you can always review the earlier points to see how they tie in, but speech should be short and succinct, IMO.

I believe this is similar to (but not exactly) what is meant by "circumstantial speech" [0].

That said, the wikipedia article seems to indicate that what I'm trying to describe is similar to circumstantial speech, but actually isn't:

"Some individuals with autistic tendencies may prefer highly precise speech, and this may seem circumstantial, but in fact it is a choice that posits that more details are necessary to communicate a precise meaning, and preempt more disastrous ambiguous communication."

Does anyone know of a more accurate term for this?

[0]: https://en.wikipedia.org/wiki/Circumstantial_speech