Could be gastrointestinal (gi), urologic or gynecologic.
Some of this depends on your age and what makes your symptoms better or worse.
From a GI standpoint, does moving your bowels make your symptoms better or worse? Does eating affect symtoms? Is there a change in your bowel
pattern? Weight loss? Blood in the stool? If any of these are present, it is likely the problem is GI in origin.