Addison's disease, also known as primary adrenal insufficiency and hypocortisolism, is a long-term endocrine disorder in which the adrenal glands do not produce enough steroid hormones. Symptoms generally come on slowly and may include abdominal pain, weakness, and weight loss. The first section of this page contains the 7 most common symptoms of Adrenal Fatigue: Difficulty getting up in the morning. High levels of fatigue each day. Inability to handle stress. Cravings for salty foods. Higher energy levels in the evenings. Overuse of stimulants like caffeine. A weak immune system