Morning Scepticism: Nothingness

I'm having a failure of language when it comes to describing myself in time. It's all okay until I go back as far as 1983, then I'm at a loss. How can one possibly describe them-self before they existed? It's an incoherent proposition. I'm not the atoms since those come and go, nor anything else of that manner. Does this satisfy the condition that something can come from nothing? If not, then from whence did I come?