Forty Leap

I don't know how long it's been since my story began. It's hard to mark the years when they go by so quickly. I'm an involuntary time traveler. Sometimes I just leap into the future. At first it was a few seconds, then minutes, then days, weeks, and years. Who I was, who I am, and who I am perceived to be by those I've left behind are all very different. And how long have I before time runs out?