What illness causes insomnia, irritability, and anger?

Insomnia, irritability, and quick temper are potential symptoms of various diseases and may be related to mental health conditions or physical illnesses. Specifically: 1. Mental disorders: Anxiety disorders are characterized by tension, uneasiness, worry, and restlessness, accompanied by symptoms such as insomnia, irritability, and anger; depression may affect sleep quality due to symptoms such as low mood and reduced interest, while also manifesting as irritability and anger. 2. Neurasthenia: Long-term tension and stress can lead to easy mental excitement and rapid mental fatigue, resulting in symptoms such as insomnia and irritability. 3. Hyperthyroidism: Excessive secretion of thyroid hormones in the body promotes the synthesis and metabolism of neurotransmitters, increasing central nervous system excitability, causing emotional fluctuations and anger, along with insomnia. 4. Menopausal syndrome: In women, declining estrogen levels can lead to endocrine dysfunction, triggering symptoms such as insomnia, irritability, and anger. If you have any concerns, it is recommended to seek timely medical attention.