You are closer to animals than humans, and it shows. In addition to the Nosferatu Clan weakness, you have an additional weakness: whenever you frenzy, you gain an animal feature, similar to the Gangrel Clan weakness (V20, p. 55).

With Storyteller permission, permanently acquired animal features may be justification to acquire certain Merits after character creation, such as Lizard Limbs (p. 160) or Monstrous Maw (pp. 160-161). If so, the Storyteller can simply award them, or require an experience point expenditure (such as two times the Merit point value). Similar Flaws can also be taken, but cannot grant additional freebie or experience points.