That happened to me once. I met my future self after a homeless man smacked me on the back of the head with a metal baseball bat. I awoke in a dark alley, naked, cold, and hungry, when suddenly my future self came running down the alley-way. "Hey!" he yelled. "Hey, me! Hey, come on, me."
"What in the hell are you talking about," I said. "Why are you calling me me?"
I was still a bit dizzy from the baseball bat, but when the pain wore off and I could see straight, it all made sense: he called me me because he was me, about 7 years in the future! I knew that I would be smacked in the head and then would subsequently appear in the future, so I came to the alley to help me.
I've always said that I would never be intimate with someone else's wife, but I still looked identical to me, even 7 years in the future, and thus I balled my wife, who I had never met, while I tied myself up in the basement. If I got her pregnant, does that mean that my son is not actually mine mine? It is a mind-bender. Often I will stay up at night planning how to avoid capture or else escape. I plan to keep a small knife tied around my ankle, because I bound my hands and feet together like a little piggie at the ankles. I may be able to reach the knife, free myself, and then keep me from balling my wife. But then, I don't believe in abortion. What if I keep my son, who may not really be mine mine, from being born. I don't know what to do.
I got back to the present time by smacking myself in the front of the head with a bat. Here I am.