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Chao Yuanfang stated: Pregnancy malaise (nausea and vomiting occurring in early pregnancy) is characterized by a feeling of mental confusion and oppression, dizziness, lassitude and weakness of the four limbs, aversion to the smell of food, a craving for salty and sour fruits, excessive sleepiness with little rising from bed. What the world calls "aversion to food" is also known as "malaise." By the third or fourth month, the body becomes so heavy that one cannot lift it voluntarily. This arises because the woman originally has deficient yuan qi and emaciation, insufficient blood and qi, and weak kidney qi, compounded by exposure to wind and consumption of cold drinks, leading to phlegm-fluid retention under the heart. After conception, menstrual blood ceases; fluid moisture infiltrates the zang-fu organs, causing their qi to fail to circulate freely. Thus, there is mental restlessness and oppression, rebellious qi leading to vomiting. When blood vessels are unobstructed and meridians are blocked and stagnant, the four limbs feel heavy. If complicated by wind, dizziness of the head and eyes occurs, and the exact location of the ailment is unknown. A pulse that is peaceful and uniform indicates pregnancy.

The *Shengji Zonglu* states: The flavors of grains consumed by women transform into blood and qi, which flow downward to become menstruation. At the beginning of pregnancy, menstruation suddenly stops and gathers. In the first month, it is called "shi" (beginning); in the second month, "pei" (embryo); in the third month, "tai" (fetus). Once formed, the male or female fetus nourishes itself from the mother, with the mouth resembling a bird's beak. During the "shi" and "pei" stages, blood and qi are not yet fully utilized, and the five flavors are not properly transformed. The middle qi becomes congested and solid, so the spleen and stomach lose their desire for grain food. Upon smelling or seeing objects/food, nausea and obstruction occur.

Zhu Danxi said: During the second and third months of pregnancy, symptoms such as retching, inability to eat, or mental irritability and oppression may appear. This is due to the accumulation of blood and qi to nourish the fetal origin. Essence and blood stagnate internally, and foul, corrupting qi attacks the stomach upward, resulting in retching and an inability to accept food. Since blood is used to nourish the fetus, the heart loses its nourishment, leading to heart deficiency, irritability, and oppression. The treatment method should regulate blood and dissipate stagnation. Use Renshen (Ginseng Radix), Baizhu (Atractylodis Macrocephalae Rhizoma), and Gancao (Licorice Root) to tonify middle qi; Juhong (Tangerine Peel), Zisu (Perilla Leaf), Muxiang (Aucklandiae Radix), and Shengjiang (Fresh Ginger Rhizome) to dissipate stagnant qi; Fuling (Poria), Maidong (Ophiopogonis Radix), Huangqin (Scutellariae Radix), and Zhuru (Bambusae Caulis in Taenia) to clear heat and relieve irritability. This formula is named Shenju Yin (Ginseng and Tangerine Peel Decoction).

Chen Liangfu stated: Regarding the disease of pregnancy malaise, the *Chanbao* refers to it as "zi bing" (fetal disease), while Chao Shi's *Bingyuan* calls it "e zu" (malaise). It is caused by weak stomach qi and phlegm retention in the zhongwan region. The pulse is harmonious, but the limbs feel heavy, there is dizziness, selective eating, and a preference for sour and salty tastes. In severe cases, alternating chills and fever, vomiting, and chest and diaphragm oppression occur. Banxia Fuling Wan (Pinellia and Poria Pill) is the primary treatment.