I remember flashes back to before I was two. My mother didn't want to believe me at once, but when I described the nature, that we were in a camping wagon and that my grandfather was walking me trough a long path in the woods to have me visit some very old people, she figured out what I was remembering. She laughed and said the path was less than a hundred meters long, and the very old people (relatives of my grandpa) were around fifty. I also remember the physically huge Christmas present I got when I was a bit over two. And I remember running off to the neighbors to get pizza at around the same age. And the babysitter I had before we moved away when I was three. I also remember a huge storm when I was around two, it caused the big windows in our house to bulge/vibrate. Lastly, I remember my first air flight when I was three - I was convinced the plane was running like a train, but on top of those bridges with a "bow" on top instead of on the rail track, due to the turbulence.
But anyhow, that was before anyone really starts being social or manifest specific social problems. The first I remember of being social, was not being it, without any complicated feelings. I played on my own in kindergarten, except that a girl insisted on playing with me from time to time, which I didn't mind. In first grade at school, I used to search for blueberries in the woods around the playground. When they asked me (somewhat concerned, after a few months) if I wasn't going to play with the other kids, I told them this was my free time, with which I thought I could do as I wished. Other than that, I remember having major meltdowns/tantrums when kids I played with (often after being told to do so by my parents) didn't do as I expected. The bullying started sometime during the first two years of school, and the withdrawal became a defense mechanism instead of my preference.
The interesting thing about those pre-social memories is that they're somewhat unreal, they feel as if I'm an avatar in a virtual world somehow. That could of course be due to very young children having different perception, and by nature wondering about this weird world they suddenly find themselves in. But I still can't help but feel that I'm sort of an alien in those memories, as if I've wound up in the wrong place. I remember being five years old, looking into the mirror and philosophizing over whether the world exists at all, or if I was in some sort of dream or simulation. I also thought a lot about whether it's possible for absolutely nothing, including my own mind, to exist at all (that's usually headache time for me still ). I have the impression that that's not normal for a five years old. A lot of adults don't grasp philosophical skepticism, so I'm led to believe the reason I did, at that age, was due to being a misfit.