Visions?

It happens every time.
Right before death.
Is it a vision, or is it all in my head?

It all happens fast,
that I know for sure.

No one believes me,
but I am always right.

I get this feeling,
right before someone I love dies.

I know when something bad is going to happen,
But I don't know why.

Is there no explination?
Or am I just blessed?

Am I suppose to prepare myself,
Or still be shocked, just like the rest?