Every night, I had the same dream.
I didn't know where I was or how I got there but I was running through the woods. It was nighttime. I could see the glimpses of the full moon through the thick overgrown trees.
Someone was chasing me and catching up with me by the sounds of it pretty fast so I doubled my efforts even though my lungs were already starting to hurt.
But all of a sudden, just before I thought I could actually pull through, and escape, the ground disappeared underneath my feet and I started falling.
And then nothing. I was surrounded by a complete nothingness and darkness. And there was no escaping it.
That was when it would start. Very slowly at first but it would grow.