Could I be THAT person?

This morning before Jazzercise class, my instructor says to me, "you should become an instructor." OMG, was I shocked to hear that! I've been happy lately to be at the point that I can do everything in class at high impact straight through, let alone being able to talk and think while doing it. But WOW, that someone actually thinks I could be that person? I feel like I have such a long way to go still to be in that kind of shape - at least another 40lbs. As positive as I have been about my progress, at the same time I keep surprising myself as to the person I am becoming and seem to have a lack of vision of what it will really be like when I am at my goal. When someone else sees that for you before you do, it's just kind of shocking! Who knows, I just might be up there someday. . .