Hell yes, and the way to overcome it is self-love and/or changing your workplace, either physically or by a different mental approach.

I've been in academia for about a decade now, and by the ends of it, I was working 50-70 hours a week for minimum wage, constantly filling out fellowship applications, constantly revising and resubmitting drafts, constantly paying money out of pocket to travel to conferences to present these drafts, only to get hit in the face with nothing but criticism.

But that's the way academia is structured, and for a somewhat good reason (at least on its face). Yet it is also responsible for a toxic atmosphere that inspires mostly negativity. You are never working hard enough, you are never reading enough, you are never writing enough, you are never publishing enough, and you should be grateful for the peanuts occasionally tossed your way.

I found myself becoming a more negative person over time, snapping at people, judging and talking about colleagues behind their backs. My finances were in the toilet. My personal relationships were strained and my girlfriend and I broke up. I barely ever saw my parents, you get the idea.

For the longest time I had thought about quitting, but the lingering sunk cost fallacy kept popping back into my head. "You've wasted all this time for NOTHING," my brain would whisper. But it all changed when I had a medical issue a few months ago. I was out of business, and it was during that time that I realized that my life should actually be defined by what I want, what I enjoy. That I had free time again. That I had loved ones who cared and laughed with me. I came back to work realizing that if I didn't like this kind of life, there was no shame in giving it up and finding something that works for me.

Oddly enough, I also found out that the skills I had developed during this process were good enough to be used in other work arenas. So I applied for a couple of jobs, and sure enough, landed one that gives me my own free time, vacations for the first time in ten years, adequate compensation, and a team of co-workers and some friends whose lives aren't self absorbed with the same imposter syndrome.

tl;dr- It's usually workplaces that breed this type of toxic work ethic and mentality, even if it doesn't seem like it at the beginning. Love yourself and apply your skills where you are more appreciated. You are not an imposter, more likely a passenger.