The common causes of dreaminess, irritability, and irritability are as follows: 1. It may be caused by excessive mental stress or poor sleep quality, which can lead to nerve damage caused by plant nerve disorders. 2. 3. Women in menopause will experience a decrease in hormone content due to endocrine disorders, which will cause nerve damage and similar mental symptoms. 4. If hyperthyroidism occurs, the normal endocrine system will be affected by elevated thyroid hormones in the body, which will not only cause an increase in skin surface temperature, but also hot flashes at night. Insomnia, dreaminess and irritability will also occur at night.