Le.Lingy
I got the taste of blood in my mouth. And it tastes stale... doesn't taste normal... Hm.. Weird. There is no normal taste for blood. Everyone's blood tastes slightly different, therefore, your blood probably is normal, and there isn't anything wrong with it.
It could also be the blood type you have. Your blood type could effect how your blood tastes, though I doubt it.
Something could've also gotten into your bloodstream as well, but only you would know that.