I had imaginary friends when I was about 3 years old....they were twins named Ging & Gong....I talked to them and imagined that the replied....Mommy actually set places at the dinner table for them!
It must be hereditary....my son had an imaginary friend when he was about the same age....a truckdriver named Charlie who lived in the corner of our living room....he has startled guests many times by yelling, "be careful! don't step on Charlie!" Charlie also ate meals with us.
A childhood belief about imaginary friends

others believed things like this
- when i was growing up i had two imaginary friends. One was named Jennifer, the other was named Onion.— Tessica
- I used to have an imaginary friend named Mr. Nobody. He would protect me from my imaginary enemy, Bad Elmer.— Kdees
- When I was six I had an imaginary friend named Binky. When I was seven my dad ran over Binky with the car.— Shadia Granger-Malfoy
- I thought my imaginary friend was real and he imagined me
I hope he still believes I existAnon - I used to believe there was a Russian Leader named Garbage Trough and an Arabian named Are A FatAnon
- The boy in my class named "Sahand" must have a sister named "Safoot".Anon