What does it mean to have a deficiency of yin and yang when you’re hot above and cold below?

Upper Heat and Lower Cold syndrome is due to excessive coldness in the body and Yang Qi rising to the surface, manifesting Yang Qi rising to the surface of the upper body or Yang Qi overflowing to the surface; the heat sign and Yang deficiency and Yin deficiency in the lower half of the body (deficiency of Yang and prevalence of Yin), which gives rise to Cold. Yin and yang deficiency refers to both yin and yang deficiency, which is mainly manifested as fear of both cold and heat.
1. Upper heat and lower cold: patients experience symptoms such as mouth and tongue sores, sore throat, swollen and painful gums, etc.; the lower body manifests symptoms such as frequent urination, urgency of urination, cold pain in the epigastric region (the stomach and abdomen feel cold and painful), unformed stools, and fear of cold in the lower limbs. Patients are recommended to be treated with Chinese herbs and acupuncture. Add clothes during seasonal change, drink more plain water and eat less spicy and stimulating food.
2. Yin and Yang Deficiency: Patients show that they are afraid of cold and heat, especially in winter, and afraid of heat in summer, which belongs to Yin and Yang Deficiency. It is suggested that patients should be treated by Yin and Yang supplementation, such as taking Turtle and Deer Erxian Gum, Dihuang Drink, and Gui Su Dihuang Pill, etc., which can improve the symptoms of Yin and Yang Deficiency.
Patients are advised not to use drugs blindly, but to use the right medication under the guidance of the doctor, so as not to cause the occurrence of the wrong medicine.