Difficulty during pregnancy may be due to pregnancy reaction, but it may also be due to some pathological factors, such as: heart disease, high blood pressure during pregnancy, and so on. 1. Pregnancy reaction: After pregnancy due to changes in hormone levels in the body, pregnancy reaction will occur. It is recommended to eat small meals, avoid overwork, but need to maintain a balanced nutritional intake, but also can divert attention, appropriate outdoor walks or eat some food containing alkaline substances, to alleviate the symptoms of gastric distress. 2. Heart disease: some pregnant women suffer from organic heart disease, may lead to myocardial ischemia, hypoxia, so that pregnant women appear shortness of breath, chest tightness and other uncomfortable symptoms. It is recommended to rest in time and maintain emotional stability to reduce the burden on the heart and relieve the symptoms. 3. Hypertension during pregnancy: For those who suffer from hypertension during pregnancy, uncomfortable symptoms may also occur, it is recommended to actively control the blood pressure under the guidance of the doctor, and the uncomfortable symptoms can be relieved after the blood pressure is effectively controlled. Overall, the causes of pregnancy discomfort are complex, it is recommended to consult a doctor in a timely manner to clarify the cause of the illness and treat the cause.