My character just became a vamp and when I sneak up on people to feed, they die afterwards. I am using the vampire overhaul mod on nexus. When I googled it, all I saw is people saying how feeding on people DOESN'T kill them. What's up?

Vampire overhauls adds the killing people by feeding bit.

Vanilla game = everyone has an infinite amount of blood.

i've only killed them by repeatedly biting in short intervals, like 3 bites right after another

And that's with the better vampires mod

If I recall one of the Overhaul mods has Vampire hunger ranks, if you don't feed for a long time you kill everyone with one feeding, then it drops to two then back to three as you said as you become sated.

Mine's newly made and feeds as much as possible. Kills everyone she feeds on straight away. :\