Am I a runner?

Am I a runner?... I like to think that I am. If nothing else, I was once a runner and am now someone who dreams of running as fluidly and as confidently as I once did. If nothing else I think that once a runner, always a runner right?
I have been trying lately to get back out and find the runner in me, and to be honest I have been having quite a hard time with it. Perhaps it's knowing that it was so long ago that I ran for a team, or with a purpose. I know that I do not have a coach to push me and to try and impress as I once did. Throughout my life though I have discovered that no matter what I am trying to accomplish or prove, often I can hardly impress myself. This dawned on me a few days ago when I went out for a run.
I was running along a new trail I had just discovered. It's a basic dirt trail that runs along a local river. It has now become one of my favorite spots to run. Trees provide a coolness, the soft patter on the dirt provides my music. I was feeling somewhat frustrated. Instead of running at a constant pace, I have been running in bursts, walking briskly in between. I was feeling frustrated and angry that I couldn't even run a constant mile without feeling winded. I was getting down on myself when I began to think back in my high school and college running days. I used to be able to run for miles at a time... and doing longer runs as well.
As my jog slowd to a walk and frustration set in i thought, What happened to me?
Then I remembered certain days doing a track workout and wanting to break down and cry. I remembed a cross country practice where I actually did, I stopped running and tears began to flow. I knew this feeling of being frustrated and of feeling incapable. But then I remembered, picking my feet back up, moving my arms again and pushing through. Mostly I remember how much more those workouts meant to me. When I would return home with the thought that I had made it through a hard one and feeling so proud of myself.
Why have I forgotten about those times. So thinking back on it the other day I realized that there's going to be days where I am down and think that I just can't go on. I will think that there is no point in training and that I will never feel as strong as I once did. And then there will be a turning point. I will realize that I can push through it, I will pick my feet back up, move my arms and continue on. And when I do, when I am home with my feet up and a warm cup of coffee in my hand, I will smile slightly at the idea I had once thought I could give it all up and that I had let the cannots and the willnots stop me for as long as I had and I will continue on once more.