Severe pain in the side and back, often coming in waves
Pain that may move toward the lower abdomen or groin
Painful urination (burning or discomfort)
Urgent or frequent need to urinate
Small amounts of urine or trouble urinating
Blood in the urine (pink, red, or tea-colored)
Nausea and vomiting
Sweating or chills
Cloudy or foul-smelling urine
Fever (may indicate infection)
Inability to keep fluids down due to vomiting
Symptoms that are new, worsening, or not improving within a few hours