Qi deficiency mainly manifests as shortness of breath, lack of energy, fatigue (mental exhaustion), etc. Yin deficiency mainly manifests as five heart-heat (heat in the hearts of the hands and feet, and self-consciousness of the heart and chest), night-sweating (abnormal sweating after going to sleep, and stopping of sweating after waking up), etc. Qi deficiency plus yin deficiency has both symptoms of qi deficiency and yin deficiency. Qi deficiency is mainly characterized by fatigue (mental exhaustion, physical weakness), shortness of breath, spontaneous sweating (involuntary sweating during the day, aggravated by sweating with slight movement), low voice, timid, lazy speech, thinness, dizziness, dizziness, and the above symptoms are even worse when you are moving, with a pale red tongue, thin white moss, and a weak pulse. Yin deficiency is mainly manifested as heat in the hands and feet, hot flashes, zygomatic redness (reddening of the cheeks and cheekbones), night sweating, emaciation, dryness of the throat and mouth, night sweating, short and reddish urination (small amount of urination, dark yellow in color), constipation, red tongue, scanty moss, and a fine pulse (the pulse becomes narrower and finer, and its rate is faster), and so on. A deficiency of qi plus a deficiency of yin will have both symptoms of qi deficiency, such as fatigue, low stamina, weakness, etc., and symptoms of yin deficiency, such as heat in the hands and feet, hot flashes and night sweats. If symptoms of qi deficiency plus yin deficiency occur, one should consult a clinician and follow medical advice.