 [ Symptoms ] i was told i had a kidney infection i still have the pain but ultrasound says no infection [ Disease ] it all depends on the bacteria if it is enterococcus faecalis someone might experience fever confusion urinary tract infection with painful urination and blood in urine the bacteria responsible for the food poisoning outbreak with raw spinach in previous years e coli can cause severe stomach cramps and diarrhea nausea and vomiting