Dizziness and lack of strength throughout the day after pregnancy may be caused by the following reasons: 1, after pregnancy, the body’s hormone levels will rise, especially the level of progesterone will rise, which will cause a series of gastrointestinal discomfort. The reason for the formation of estrogen levels rise, stimulate the smooth muscle of the gastrointestinal tract, so most women of gestational age after pregnancy will appear nausea, vomiting, fatigue, drowsiness and other early pregnancy reactions. 2, dizziness after pregnancy, there may be patients with hypoglycemia, that is, pregnant women eat all the food because of gastrointestinal reaction and vomit, the body’s blood sugar will be lowered, hypoglycemic reaction will occur. Low blood sugar can cause sweating. Hypoglycemia can cause sweating, dizziness, fatigue, and possibly panic. So when a pregnant person is in such a situation, she should go to the hospital to have her blood sugar checked, and if hypoglycemia is present, she should eat more food to replenish the sugar in her body after vomiting.