I think I'm a half-vampire/ half-human?

Okay, I figured out my mother's side of the family came from England and my dad came from the US. I am the first one in my family to be born with very very sharp canines (sharper than normal). I can go out into the sunlight, but it hurts. I can eat garlic bread, but it makes me feel sick. I can stare for a long time and not have to blink for awhile. I can stop breathing for a while, but I still have to breathe (I think). I stare at people's necks and when I do it makes me thirsty. Sometimes when I'm thirsty nothing like water, juice, soda, etc. helps and the only thing that quenches my thirst is my own blood. I can be tan, but I always turn pale again. When I'm barefoot I can run really fast and I'm able to hurt people really easily, but I'm not very strong. Am I a half-vampire? Please help and don't say I'm Crazy.