Low Cortisol levels will cause you to suffer from adrenal fatigue, chronic fatigue, exhaustion, insomnia, sleepiness, hair loss, mood swings, and more. Adrenal fatigue isn’t is a condition where cortisol levels are chronically low. When your adrenal glands are not able to keep up with chronic demands, the result is they get fatigued and cannot produce enough cortisol. Adrenal glands being overworked initially result in elevated cortisol levels but eventually in time as the glands become fatigued, the cortisol levels diminish resulting in symptoms such as fatigue, mood swings, decreased libido, erectile dysfunction, depression, sadness, body aches, digestive problems, anxiety, nervousness, sugar and salt cravings, low blood pressure, light-headedness, loss of body hair, sleep disturbances and exercise intolerance. In the initial stages when the cortisol levels are high, the symptoms include weight gain around the abdomen area, insomnia or mood swings, sugar and salt cravings low libido and erectile dysfunction among others.