I’m no professional but here is my opinion
One of the most prominent traits of my personality is creativity. I really enjoy building stuff. I mean: Really. I usually spend 1.5 to 3 hours a day studying, hacking on side-projects and more recently, writing. And then one day I started noticing that I was getting home, after a regular day of work, feeling too exhausted to be productive, or even too excited to get anything done. Then I thought: “How can I be so worn out if my job basically consists of me sitting in a cozy chair, under air conditioning, typing stuff on a keyboard? It’s not like I’m a mason carrying bricks all day long. I can’t be that exhausted”. Yes, software development is definitely mental-taxing, but I knew I was crossing the line. My next thought was, “OK, so, I’m very stressed because of X, Y and Z”. Then I got X, Y and Z sorted and nothing changed; Which led me to therapy; Which let me to a psychiatrist and ultimately being diagnosed with Anxiety Disorder.