I have this fetish with blood and vampires is that bad?
Of course not, I have a blood fetish as well. There is never anything wrong with any fetish unless it harms a non-consenting individual. You might even find somebody who shares your fetish, I know my boyfriend enjoys being cut, so it works out well for both of us :]
No comment on the subject but.. is this really a debate? It seems more like an Issues and Advice type thing...
I'd say that as long as you aren't killing someone in the process, go for it.
I told my grandmother about this fetish she says maybe i could be a flobotomis