I really need help trying to cure my vampirism, everywhere i go i get attacked and its getting kinda annoying so if anybody can help me with this than it will be very much appreciated! thanks

If you sneak up on a sleeping NPC, you can feed on them, reducing your vampirism back one stage per feeding. People are only automatically hostile if you're a blood-starved vampire.

If you want the quest to cure it, just visit an inn and ask the inn keep about rumors. You'll find out easily enough from there.

I heard that you need to use a shrine to cure it.But i think that isn't true.Also why don't you search at Google bro?

cure disease potion