Though I don't think I ever worked as hard as the commentor, this bit felt pretty relatable:
One thing that always happened at the end of a semester is we'd have a few days after exams but before flights back home. On these days I'd typically try playing a video game (my hobby before college) and every time I would stop playing after just an hour with deep feeling of unease at the pit of my stomach. "Alarm bells" is exactly how I would describe it - a feeling at the core of my psyche that I have been wasting time and there must be something productive I should be doing or thinking about.
Years later, having tackled anxiety problems that had plagued me most of my life, I came to recognize that my relationship with hard work during my college years was not healthy and that this deep seated desire to do more work is not a positive thing, at least not for me.