Question

60 POINTS!!! please hurry

Riddle:
i am a 7 letter word.
most humans want me.
but they hate the first 4 letters of my name.
if you gt the 2nd, 3rd and 4th letter you are sick.
the 5th, 6th and 7th is something with a charge.
who am i?

Answer 1

First 4 Letters - BILL
2,3,4th Letters - ILL
5,6,7th Letters - ION

Answer 2

The answer is billion i believe