Crohn’s disease, diverticulitis, infection in kidney, kidney stones, constipation, ovary involvement in women (cysts, hemorrhage, tumor, torsion—torsion is a medical emergency and a long standing pain is not due to this), ectopic pregnancy in women, mesentry (a thin tissue that carries the blood, nerves and lymphatics for the intestine) involvement low blood supply, enlarged lymphnodes, and an
abscess in rectus abdominis muscle or psoas muscle (these two are unlikely is there is no localized pa