The discomfort can extend to the lower back or legs. Menstrual cramps are not the same as the symptoms experienced due to premenstrual syndrome (PMS), although the symptoms of both disorders can sometimes be experienced together. Many women suffer from both PMS and menstrual cramps.
Some diseases which involve other parts of the GI tract can manifest in the mouth, alone or in combination, including: 1  Gastroesophageal reflux disease can cause acid erosion of the teeth and halitosis. 2  Gardner's syndrome can be associated with failure of tooth eruption, supernumerary teeth, and dentigerous cysts.
Gastrointestinal bleeding (GI bleed), also known as gastrointestinal hemorrhage, is all forms of bleeding in the gastrointestinal tract, from the mouth to the rectum. When there is significant blood loss over a short time, symptoms may include vomiting red blood, vomiting black blood, bloody stool, or black stool. Small amounts of bleeding over a long time may cause iron-deficiency anemia resulting in feeling tired or heart-related chest pain. Other symptoms may include abdominal pain, shortness of breath, pale skin, or passing out. Sometimes in those with small amounts of bleeding no symptoms may be present. Bleeding is typically divided into two main types: upper gastrointestinal bleeding and lower gastrointestinal bleeding.