My earliest memory is a bit hard for me to pinpoint, and my true earliest memory is more of a screenshot than a real memory.
One of my earliest real memories is of falling off of a bike at my friend's house going down a gravel hill. I remember looking at my hands and seeing them completely scraped up and bleeding and the bike, which was a few feet away from me.
I have a number of injury-related memories, the most recent is less than a year old. (in a similar situation, but on a dirt bike) Some things haven't really changed.