I have had two near death experiences and sometimes i feel as though during one of them i didn't recover. perhaps my brain is still active or possibly i am in the process of dying and of course, it seems as though i went on, recovered and have lived years, my body is on the floor dying. It is really off putting. I am aware that there are movies like this

Life and death. What's the difference? Who's to say?
No one knows what is beyond birth or death's door.
The body you're aware is animated is dying everyday.
Apparently in 7 years time every cell in your body, will have been replaced.
Such is the yin/yang or dichotomy of existence.
To not exist is not provably permanent, any more (though we observe) existence's ever changing impermanence every day.
Odd.
René Descartes
Either way your in existence and haven't noticed a transition so whats the issue?
You balance this world just as much as air and water. without one vital piece of this universe, it will cease to exist.
You are physically very much alive but your mind is stuck on your near death experiences. Learn to break through them and live while you still have a body to do do. :)