Lately, I've been feeling zero motivation to work. No matter what I do, I just can't get into it.

Lately, I've been feeling zero motivation to work. No matter what I do, I just can't get into it. I’ve tried music, breaks, even a change of scenery. Still nothing. I’m pretty sure it's not just burnout, but I can’t put my finger on what’s causing this slump. Anyone else been through this? Any tips on getting that drive back?