First person who answer questions win 5 votes each

self hating

exposure to highly radioactive radiations.
you suffer extreme and scary conditions in your body and might be already dead even before doctors figure out the probable cause

being dangerous to people and they keep you away from their lives

Its supposed to be obvious

third hint: One word

dangerous

smart

power

Death.
nothing can even defy it, hence the deadliest

CORRECT! (to @Monsterr_Trainer)

What do you want me to vote (up to 5)?

oh that was a good one, but i thought it was refering to a characteristic of Thrill since he said this:

But still thats a good one

…I literally said dying

yeah

but be SPECIFIC

Fine

Dying can be a cause of DEATH

i searched and its not the same

may be my bro-mon idea

Its one of my fav. so…

I told you, only smart people. It is a puzzle

but you also needed to be specific because you said that its not what you are so think