How to diagnose patients with yin deficiency and excessive fire?

This syndrome is characterized by deficiency of kidney yin and hyperactivity of heart fire (note: Yang in the heart descends on the kidney, which can warm and nourish kidney yang; Yin in the kidney helps the heart and nourishes the heart yin. Heart fire drops, kidney water rises, and they communicate and coordinate with each other. This relationship is called "fire and water ji ji" and "intersection of heart and kidney". Pathologically, both the imbalance of yin and yang of the heart and the imbalance of yin and yang of the kidney itself will lead to the destruction of the relationship between heart and kidney, which will lead to corresponding diseases and syndromes. If the heart fire is too strong and falls to the kidney, or the kidney water is insufficient to nourish the heart yin, then the physiological functions between the heart and kidney will lose coordination and a series of pathological manifestations will appear. ) is the main pathogenesis. Syndrome differentiation is based on insomnia, nocturnal emission, soreness of waist and knees, and asthenic heat. Deficiency heat has five qualitative symptoms, such as upset fever, hot flashes, night sweats, forgetfulness, dizziness, tinnitus, red tongue without coating, and rapid pulse. Symptoms of heart and kidney diseases such as palpitation, palpitation, sore mouth and tongue, backache and nocturnal emission appear. This syndrome can also be manifested as kidney-yang deficiency, weakness of waist and knees, and fear of cold.