Got the game yesterday so only level 12 or so and did a quest which I needed to kill vampires and because of this became a vampire myself. Started the quest to get rid of vampirism (using that black gem if I remember correctly). Was told to meet Falion at Dawn but when I tried to I was attacked by him and guards. Now wherever I go guards will attack me. I'v tried every city/town etc and every guard attacks me. Any way to stop them from attacking me without going to a save from a few hrs ago?