Make a new text file where your .esps go with the following:
player.removespell 8d5c2 ; Vampiric Drainplayer.removespell 88821 ; Embrace of Shadowsplayer.removespell c4de2 ; Vampire's Seductionplayer.removespell ed0a7 ; Vampire's Servantplayer.removespell c4de1 ; Vampire's Sightplayer.removespell f5b54 ; Champion of the Nightplayer.removespell 10f1e7 ; Nightstalker's Foostepsplayer.removespell ed0a8 ; Resist Diseaseplayer.removespell ed09e ; Resist Frostplayer.removespell 10fb30 ; Resist Poisonplayer.removespell ed097 ; Night Stalker's Footsteps
and call it unvampme.txt
Now in-game open the console and type 'bat unvampme' without the quotes and see what happens.
Edit: If you aren't being attacked by vampires, wolves, and undead make a second text file called unvampfac.txt with the following:
player.addtofaction 27242 -1 ; (VampireFaction)player.addtofaction 46281 -1 ; (DA03VampireFaction)
and type 'bat unvampfac' into the console.