Vampiric Curse

You are inhibited (and enabled) by a vampires curse. Most likely passed onto you by being bitten by a Vampire King/Queen, you gain some of the benefits and detriments of being vampire. You gain fangs and retractable claws to defend yourself. As well as an unearthly desire to drink blood. Though you can consume other food and drink, it tastes bland to you and does nothing to restore your energy. You can go up to seven days without drinking blood before you begin to suffer the effects of exhaustion on your body. You become considered an undead creature, and thus take damage from coming into contact with holy water. You gain incredible vision in the darkness, but suffer a sensitivity to direct sunlight that makes it almost blinding to you. You also are unable to enter any homestead or building without permission from one of the occupants.