...You're more stressed at work, more often, than you used to be. When you 'finish' work for the day, it follows you home, so you're checking messages all evening, unable to focus on your partner or family. You wake up at 2am worrying about work.
You're a high achiever, used to solving every problem.
But now your workload is overwhelming and expectations unrealistic. You're anxious that others are judging you and that makes you irritable. You start avoiding people. Nothing is fun any more.
Day by day, you become more demoralised and exhausted. It's wearing you out. There's no relief.
You try to motivate yourself every morning, but you're too tired and pissed off. You hardly care. Making more effort to fix things just increases your anxiety. You try to perfect your work, but get even less done. You're further behind, yet you never used to be like this. It all looks a bit hopeless. You want to change jobs/career, but doubt that it will work out.