Minecraft is showing me sounds because I turned subtitles on.
My hearts look different because it's on hardcore, that's why this baby zombie is so difficult because Philza had a hardcore world that he had running for 5 years, than died to a baby zombie in full golden armour, just like this one. So there was a high chance of my death, as I am wearing full iron with prot. 2 gold pants, instead of full prot. 4 diamond armour.