It is common to have stomach distension during menstruation because the pelvis is congested during menstruation and the uterus is also congested. So in this case, coupled with the release of prostaglandins, it will cause stomach distension and lumbar pain and other discomfort. The painkillers that are normally used can be eaten, such as painkillers, ibuprofen, etc. These drugs can play a short-lived role in relieving pain. 3, if there are usually no symptoms of dysmenorrhea, you need to go to the hospital for a checkup if there are sudden symptoms of dysmenorrhea.