Well, that's a tough one. Some vampires see themselves as human others stritly deny this. More a philosophical problem than anything else. Hey, if this term is new to you, consider yourself lucky. Hunger is if you want or need something really bad.
Some vampires prefer the expression thirst .
Whether just legend or frightening truth, a hunter seeks to harm or even kill a vampire. Some act out of religious motives others just hunt for sport. These are seriously disturbed individuals who are on some sort of holy, satanic or other hate crusade. In the original sense this means incapable of dying. As far as scientific proves go there is no such thing.