Have you or someone you know left your job due to anxiety or similar reasons, and how did you get back to work?

Many of you know that I suffer from terrible social anxiety, and the combo of social anxiety and another issue caused me to leave my job. I haven’t been back to work in several months now, and although I’m not even sure that I’m emotionally ready, I still worry about how all of this time off is going to affect me when I do try to get back into the working world.

Has anyone else gone through something similar? Even burnout? Have anxiety or depression caused you to leave work? Have you taken a long period of time away from working and then gone back?
What do you put on your resume? How do you explain to a potential employer why you’ve been out of work for so long?