Heartburn Causes. Heartburn is actually a symptom of GERD (gastroesophageal reflux disease), and is caused by acid refluxing back into the esophagus. Risk factors include those that increase the production of acid in the stomach, as well as structural problems that allow acid reflux into the esophagus.
Renal Colic Symptoms. Back pain is in the foreground. Back pain is intense, appears abruptly on one side and may radiate to the abdomen, the iliac fossa (above the groin) and genitals. The pain can vary, with paroxysms and periods of remission but can not find any position that relieves pain.
Kidney infection (pyelonephritis) Kidney infection, caused by bacteria, is marked by sudden chills and fever, pain, nausea and urinary issues. Pelvic inflammatory disease (PID) Pelvic inflammatory disease, an infection in the female reproductive system, causes pain, discharge, and more.