A very good resource for those who think they may be suffering from adrenal fatigue is Dr. James L. Wilson's book Adrenal Fatigue: The 21st Century Stress Syndrome.
Dr. Wilson explains the causes behind adrenal fatigue, a list of signs and symptoms, how it can lead to other diseases and health conditions, and even a questionnaire to help you determine whether you are indeed a candidate for adrenal fatigue. Most importantly, he includes a complete program to help you recover from adrenal fatigue through lifestyle, diet, and supplementation.
He has an excellent website: http://www.adrenalfatigue.org/, where he presents a lot of the information from his book. This even includes the "Burn out" questionnaire: http://www.adrenalfatigue.org/adrenal-fatigue-questionnaires/burnout-questionnaire.html