WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms bleeding, diarrhea and pain or discomfort including Food poisoning, Irritable bowel syndrome, and Gastroenteritis. There are 79 conditions associated with bleeding, diarrhea and pain or discomfort.
At least half of women have experienced the discomfort with urination caused by a urinary tract infection: painful, urgent, or frequent urination. Pyelonephritis may start with similar symptoms. However, once the infection has spread to the kidney, signs of more severe illness usually result.
1 Infection in the upper urinary tract generally affects the kidneys (pyelonephritis), which can cause fever, chills, nausea, vomiting, and other severe symptoms.  The lower urinary tract consists of the bladder and the urethra.