Deep Seated Discontent

I was watching a video on youtube earlier today about the different types of work one could get. It ranged from mind numbing jobs at a place like starbucks to high flying ones like being a surgeon. While I do not have a high flying job, I can identify especially with the part of having the job that is so stressful and demands all your attention that it becomes your life. Your work defines who you are. ANd I can honestly say that it is making me miserable. I feel bloody miserable. My life is in a constant state of stress and even time off isn't relaxing. Could it be that I hate my field of work?