Kidney deficiency is proved by TCM syndrome differentiation, which is divided into kidney yang deficiency and kidney yin deficiency. The symptoms of kidney-yang deficiency are backache, chills in limbs and chills, which mainly means "cold". Poor sexual function can also lead to kidney yang deficiency. The symptoms of kidney yin deficiency are "heat", mainly including backache, dryness and heat, night sweats, sweating, dizziness and tinnitus.
Guiding opinions:
I suggest you take decoction for conditioning after you find a Chinese medicine practitioner. Kidney-yang deficiency can be supplemented by eating dog meat, mutton, leek, loach, etc. Drugs include Shenbao, Yu Cong, Jinkui Shenqi Pill, Gui You Pill, etc. Deficiency of kidney yin can be supplemented by hashing membrane, auricularia auricula, black sesame and small walnut, and drugs include Zuogui Pill and Liuwei Dihuang Pill.