I am experiencing lower abdominal pain (side: left) . the following also describes me: abdominal pain all over. what should i do? and fishy discharge

Doctor can evaluate: If one has worrisome tummy pain, and is normally in good health, plus is not pregnant, the possibilities include: appendicitis (usually R lower quadrant), diverticulitis, kidney stone (very painful), constipation (crampy), stomach flu, etc... Most people with "moderate pain", more than mild pain, should get a doctor's evaluation to be sure it is not appendicitis, pelvic inflammatory disease, etc.