I dont get what you are trying to do... These answers will help me.
What are/is the Herz.mdl animations doing?
Is it a beating heart cycle, a shrinking heart cycle, or something else?

Are ALL the hearts supposed to 'die' during the players journey from 100 to zero?
Or does each hart die one by one as the player approaches death?

When player.skill98 = 100, is that FULL-health or dead?

What is the point of the heart.skill1 being 1,2,3 or 4? What does it symbolise?

Overall, on-screen , what should the string of hearts do as player hets hurt?