4. Celiac Disease
Celiac disease occurs when the body is unable to properly process gluten. Celiac disease can cause fatigue and sleep disturbances. Untreated celiac can damage the small intestine.
Damage to the small intestine can lead to mineral and vitamin deficiencies. It can also lead to fatigue. Other common symptoms include anemia, diarrhea, bloating and weight loss.
You can see that there are many things wrong with the body when you feel tired all the time. It is therefore important that you consult your doctor to find out the cause of this symptom. All of these diseases need to be properly treated to prevent further health problems in the future.