About 5-6 months ago, I received an injection of Valium in the emergency room. They injected it into my hip. It hurt worse than any other injection I had ever received...I was crying for 20 minutes. What's really weird though, is that I STILL have pain at the injection site! It feels like a bad bruise, but there is nothing visible. Any ideas about what might have happened, what to do about it? Thanks!