Funny enough I also have a bad reaction to the wounds blood or disgusting things, while at the same time I like them too. So I have to cum before I faint while fapping on the heavily mutilated body LOL (this applies to real life stuff only )

But I don't think this classifies as phobia since there is no fear or any conscious reaction at all just for some reason blood pressure drops.
this also happens if I get hurt myself, especially when I feel no pain, I get weak but if it is painful or if I am agitated enough, nothing like that happens.