How about pain almost a week after getting a shot of demoral (however you spell it) for a urinary tract infection that hurts worse than the pain from the infection!!?? Is that normal?

Went to the ER for pain I was having on each side of my hips but "inside"...they said I had a urinary tract infection and gave me a shot of demerol in my arm for the pain, all was glorious!! But here I am almost a week later and the pain is so bad that I can't sleep on my arm or do much of anything else with it!! Is that normal???