Well, I'm not a psychologist but I would suggest that you make sure you are actually experiencing burnout and that this feeling you think you have, this burnout feeling, about your career doesn't have to do with something else that's going on in your life.

If you are really experiencing burnout you could always change careers or stay in the same industry but explore the industry from a different perspective. For example, if you're a chef at a restaurant maybe you could start a catering business or if you're chef in an French Bistro maybe you could switch to a Thai restaurant. Maybe becoming an executive chef would put a different slant on things or even teaching or writing.

It just makes sense that if this is truly burnout you can't fix the problem. I suggest you take a few months off from work working in another field and see if you feel better.

Also, get a complete medical checkup.