I've noticed something about myself about myself during the edit stage of my novel: I have a tendency to use a word several times, in very close proximity. I know this is a common mistake and one of the many reasons why we edit, but I've taken it even further.
I'm at roughly the 25K mark and every ten pages or so I have to find a replacement word for the duplicate. But what's weird is I will use one word twice in two sentences, then never use them again.
Weird words. Words I don't use often.
My MC glances and breathes a lot - he's trusting his life to some shady characters, what do you expect? But "swatting" someone's butt (twice in three pages), "fresh produce" (twice in one page), "tipped his bottle" (and not to drink it) - these phrases don't appear anywhere else, except for right next to each other. Then there's the occasional "slumped against" the whatever. Weird.
Does this happen to anyone else?