Overanalyze Over Overthink

So here’s the thing… I haven’t slept, partly due to being on the phone for the past couple hours…
However, that is not the sole reason why I have not slept. My mind is, what some would say, very active…. So sleep can be rather scarce at times.
For instance, certain terms in use today can occupy my thoughts… Terms such as “overthink.” This term makes no sense. It seems fallacious to me.
I want to make a motion to strike the term “overthink” (and conjugations thereof) from regular use and replace it with the term “overanalyze” which can lead to “analysis paralysis.” Hence, I feel it would be more appropriate. Without resorting to colloquialisms, how, precisely, can one “overthink”? Are we not always thinking on topics that hold our attention throughout the day and mentally flit between them and the new ones that crop up as we go about our daily and nightly routines?