The main reason for vomiting, diarrhea and sweating during menstruation is that the endometrium sheds during menstruation, and when it does, it releases a lot of prostaglandins, which not only cause contraction of the smooth muscle of the uterus, which may cause dysmenorrhea, but also contraction of the smooth muscle of the gastrointestinal tract, which causes nausea, vomiting and diarrhea. This is what causes nausea, vomiting and diarrhea. The nausea, vomiting, and diarrhea can lead to clinical sweating, mainly due to the large amount of prostaglandins produced during the shedding of the endometrium, and it is recommended that oral medication be given accordingly. If the nausea and vomiting are particularly severe, you can take oral vitamin B6 for treatment. You must keep warm during your menstrual period and drink hot brown sugar water to help the menstrual blood flow more smoothly and reduce the occurrence of these conditions.