I love this post. I am just like you, except I tried running once in high school. I loved how I felt afterward, until my gym teacher ridiculed me for finishing last. Never dared to try again until 16 years later (2010). I strongly encourage you to sign-up for a 5k, especially given that you enjoy running. It will motivate you to get up and go on the days when you just don't feel like it and it will prove to you just how athletic you are. You are a runner!!!
Val and kimberleyirene like this comment.