I'm still having fake fights with people in my head. It happens incessantly. The only thing that helps is to keep distracted.
But maybe that's masking the problem.
Here's an example of a negative daydream I just had while doing my lesson plans:
My students are top notch. One of them is a visiting scholar who will soon be delivering a speech at an Ivy League university (this part is actually real).
The figment was this obnoxious idiot I saw on TV. She said "your lesson's too hard! It's too hard!! It's too hard for them!!"
Then in the daydream, she taught my class very basic, preschool caliber English. She was even talking to them in a baby voice. Then the director gets mad at me (in the daydream) and says "students are complaining that your class is too easy." So I go back to working on lesson plans. She starts up again saying "that's too hard!!" I cussed her out. I said "they said it's too easy you dumb ass bitch!!!" I was furious.