Feeling Like Ant-Man

I was only dead for about a minute, but I was unconscious for over 3 hours, and the only thing that comes close to what I experienced was the end of the movie Ant-Man -the part when he goes subatomic. There were bright colors and distorted shapes, followed by sudden darkness and silence. Time was different, like it wasn’t moving. Sometime later, I began hearing voices in the room and it was then I realized I was back.