Non-Vampire Spell Caster Sim has irresistible thirst moodlet

This is also happening to me. My sim was never a vampire and I created him from scratch. I was playing one day then the moodlet suddenly popped up. He is actually a spell caster and i have no mods that permits the sims to be both a spellcaster and vampire simultaneously. There are no vampire interactions available for use with other sims. I’ve tried reset sim and make happy but the moodlet is always there. 

(CM: Post split from necro'd thread)