Most people find it annoying when something is using up their life points to quick, and even more when they cant find what is using it! Maybe add a sigil or just an ingame command to see what is using the life points?

What about combining a divination sigil with a blood helm and have it work like the thaumcraft goggles?

Um I would love a blood compass to help you track down what or who is using your LP,

Would be too difficult. Someone else could try it :D