Growing up I always had imaginary friends. One of them however seemed more real. Eventually, I grew out of having imaginary friends but I still always felt like something was there. I would constantly talk back to the voice I heard in my head (thinking I was just talking to myself.)
As I got older, I started opening myself up to paranormal things. About a year ago I discovered that the imaginary friend I had as a child is real. She attached herself to me when I was born and has always been with me. She is one of my best friends and I consider her more of an older sister.