Every day very tired and fatigue can be seen in normal people, but also may be hypothyroidism, anemia, diabetes and other diseases caused by, you should consult a doctor in a timely manner, to clarify the cause of treatment. 1. Physiological conditions: normal people who are in a long-term high-pressure state, lack of sleep, do not eat properly will be very tired every day, such people should maintain a regular routine, eat on time to supplement nutrition, do the appropriate exercise. 2. Hypothyroidism: various causes of thyroid hormone secretion caused by insufficient systemic low metabolic syndrome, the patient will have fatigue, chills, mucous edema and other symptoms, you can use levothyroxine tablets for treatment. 3. Anemia: the relative or absolute insufficiency of red blood cells in blood circulation caused by various reasons, patients will have headache, dizziness, fatigue, palpitation after activity (rapid heartbeat, often accompanied by panic) and other symptoms, this kind of people should actively search for and treat the primary causes of anemia, and appropriate iron supplements. 4. Diabetes mellitus: a series of clinical syndromes caused by impaired utilization of sugar due to relative or absolute insufficiency of insulin, with symptoms such as excessive drinking, excessive eating, fatigue, and loss of vision, etc. It can be treated with drugs such as metformin, glimepiride, etc. All of the above drugs should be taken under the supervision of a doctor. All of the above drugs should be taken under the guidance of a doctor.