Tracks strongly with my perception of my own mental health during a sequence of bad jobs in big tech over the past decade and a half. Once a rumination started I would have zero awareness of near _anything_ else either in the room or on the computer. I'd go through some suffering while reliving a shitty experience or interaction in my head, and then feel extremely testy and frustrated with my work and colleagues. I often did nothing in a day and then smashed out a couple tickets at 4:45 before dragging my angry ass back to my family. Somehow this was still enough to get sterling performance reviews in that enshittification industry. Awful, just awful.
To anyone out there experiencing regular repeating ruminations over workplace bullshit, you are not alone. It might be the job, it might be your manager or colleagues, or it could very well be you, but it doesn't matter once you're losing days to that headspace - I would strongly advise you to just get out when you can.
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