You know that "Sunday feeling" you got when you were a kid? Late Sunday afternoon your stomach would start to ache and you would begin to feel a little sad. Then by nighttime, you had an outright stomachache and a big case of the blues as you came to the realization that your weekend would soon be over. You wouldn't have time to leisurely sit around watching tv or read just for fun. There would be no more running around outside for hours and basically no more fun for five more days.
Although I actually liked going to school, I had that feeling each and every Sunday of my childhood. Even now, I occasionally get that "Sunday feeling" in spite of my job being pretty much stress-free and honestly, quite enjoyable. I did have a job a long time ago that brought me to tears at the end of each weekend. I dreaded Mondays, and in turn Tuesdays, Wednesdays and so on. I don't know if you would call it job burnout, but I knew I had to put an end to it. And so I did after nine months that felt like nine years.
Most people, at some point in their careers, experience job burnout. It's that feeling of "I just can't do this anymore" when it comes time to get ready to go to work. You may be plagued by fatigue, be unable to concentrate, or may find yourself getting angry for no reason. You may feel extremely sad, defeated and completely unmotivated. If your job is wearing you down, you have some choices to make and they will vary depending on the severity of your situation. You may merely need some time off from work or you may need to quit your job altogether. Read Job Burnout: Causes, Symptoms and Cures.