This is no normal fatigue. If you have been suffering from constant fatigue for at least 6 months, you could be diagnosed with chronic fatigue, according to the Mayo Clinic. The whole reason why you’re chronically fatigued is that your liver has become toxic. Your liver is one of the main organs that contribute energy to the body. One of its tasks is to turn glucose into glycogen and to store it away. If you have a healthy liver, it will release glucose whenever your body needs energy. A toxic liver can barely produce any glucose and will have little to no space to store it.