Sometimes people do have unpleasant reactions, fevers, etc. However, serious problems among adults are really, really, really rare, whether you have PVC or no.
You might try taking some tylenol and icing the affected site right after the shot.
Trust me, the last thing you want to do is go out and work in a hospital without that hepatitis shot. And how can you tell your patients shots are nothing to be afraid of if you're scared?