Weakness and sleepiness before menstruation may be a normal physiological phenomenon, or it may be caused by PMS, endocrine disorders, hypothyroidism and other reasons.
1. Physiological reasons: Before menstruation, due to large changes in hormone levels in the body, women may affect the excitability of the neuromuscular system, leading to weakness and sleepiness.
2. Premenstrual syndrome: When women have premenstrual syndrome, they may also experience symptoms such as feeling weak, sleepy and irritable before menstruation. The symptoms will be relieved or even disappear after menstruation.
3. Endocrine disorders: When women have endocrine disorders caused by irregular work and rest or mental stress, they may also feel weak before menstruation.
4. Hypothyroidism: Thyroid hormone is mainly used to maintain the body’s metabolism, when the thyroid gland is hypothyroid, resulting in a decrease in thyroid hormone, it will cause a decline in metabolism of the human body to appear fatigue and easy to sleepy and other symptoms.
If the symptoms of fatigue and drowsiness before menstruation are not relieved, or accompanied by other symptoms, you should go to the hospital in a timely manner, to clarify the cause of the problem and then give targeted treatment.