I was turned into a vampire last nght, it was extremely annoying when people started attacking me for no reason at all let me stress this as much as I can:
IF YOU ARE BITTEN BY A VAMPIRE (OR ATTACKED BY ONE) YOU HAVE TO IMMEDIATELY GO TO THE "THRONE OF TALOS" IN WHITERUN AND ACTIVATE THE CROSS, OTHERWISE YOU'LL HAVE TO GO THROUGH A LONG QUEST TO CURE YOURSELF OF IT!
that's what happened to me and while, being a vampire will be fun when I'm ready to be one, it's frustrating when you have to do this buggy quest....
If you guys need help, I cured my vampirism but, it's a little tough, if people are attacking you then, you're a "stage 4" vampire and will need to suck someone (their blood...) while their asleep in order to become a lower level vampire to do the quest, I succesfully did all of that last night so, if you need help, pm me
I also, recorded myself feeding off of someone and that video is here: