I've had stomach cramps for two days. diarrhea yesterday and constipated today. haven't taken anything for it. never had this problem before, always r?

Constipation: If you had multiple bowel movements it is not unusual to skip a couple of days of movements. Your regularity will eventually return as you continue to eat a normal diet. The diarrhea may have been from something you ate or from a mild viral intestinal infection.

See your Physician: Abdominal pain, diarrhea and constipation has many causes. Appendicitis, any foreign travel, bacterial, viral or fungal infections. Or could be from eating new or unusual foods. If accompanied by fever; need to see Physician as soon as possible.