Call Your Doctor Now (night or day) If

• You feel weak or very sick
• Severe pain
• Visible sweat on face or sweat is dripping down face
• Associated abdominal pain
• Weakness of a leg or foot
• Tingling or numbness in the legs or feet
• Numbness in groin or rectal area
• Unable to urinate and your bladder feels very full
• Blood in urine
• Fever and pain over lower ribs of back (flank)
• Vomiting and pain over lower ribs of back
• Pain or burning with urination and pain over lower ribs of back
• Pain goes into groin or scrotum
• Pregnant and pain is not relieved with rest