That's a great question! Yes, burnout can mean different things for different people! For myself, I burned out mentally. But for someone who works in construction for example, they can feel burned out physically.
My advice would be to take a well-rested break. At times you may not realized it, but stepping away for a bit, would help.
Every company is different. I would mention it during your 1:1s with your lead or your HR rep on how you are feeling. It's better to be transparent if you know you're reaching burnout, then being burned out.
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