When a pregnant mother has a baby, her body has to do a lot more work, such as helping the baby grow, exercising muscles and loosening joints, which is a hard task for the pregnant mother’s body itself. In addition, the pregnant mother’s weight starts to increase, she has to bear the weight of the fetus, placenta and amniotic fluid, the blood circulating in her body also increases, and her metabolism becomes faster, which is a burden to her body, so she will easily feel tired. In addition, it is also recommended to rule out the possibility of low blood potassium and to have a complete set of biochemical tests.