Common causes of stomach or abdominal problems or pain may include indigestion, a stomach virus, menstrual cramps, food allergies or gas, explains WebMD. People who have irritable bowel syndrome, constipation or diarrhea may also experience stomach or abdominal pain that can lead to a nauseous feeling stemming from the stomach.
Medical conditions such as an ulcer, pelvic inflammatory disease or a urinary tract infection can cause stomach problems, according to WebMD. People who are lactose-intolerant often experience stomach problems and abdominal pain when consuming dairy products. Food allergies or food poisoning may also produce stomach pain or problems that can lead to bowel symptoms such as constipation or diarrhea.
Individuals with serious conditions such as a hernia, gallstones, endometriosis, kidney stones or Crohn's disease typically experience stomach problems with the symptoms of these medical conditions, according to WebMD. Appendicitis produces strong stomach pain and problems if not treated immediately.
Viral infections and gastroesophageal reflux disease produce symptoms that can cause stomach problems or flu-like symptoms that include stomach cramps, explains WebMD. Individuals experiencing severe abdominal or stomach pain for more than a few hours should consult with a medical professional, especially if signs of dehydration are present or the stomach is tender to the touch.