did you remember this in a dream, this to me sounds like those tunnels going into one of the ufo bases that are always described.
check this out s it may be something like that.
good luck in your search.
Sounds like you're dead. You should probably stop haunting the internet. Seriously though, your post is pretty vague. Where and when did you
experience this?
People usually describe a tunnel with a light when they've had a near death experience, but they are turned away when they get to the end, or the
light, being told they aren't ready to die yet.
Very strange and vague, but my suggestion is that you may be remembering your birth. Several people have claimed to have a vivid memory similar to
yours, and attribute it to thier moment of birth. Just a thought!
Also very possible. There are several points in pregnancy where there are massive amounts of '___' dumped into the mother's body, but as far as I
know there have been no prenatal or neonatal tests for this occurrence.