I think that if you're dreaming of being a healthy person, kudos to you! That's the way that I see it. You like running, run. Of course, wear supportive gear (good shoes, sports bra, reflective shorts, shirt, etc). Listen to your body. Don't push yourself too hard that you're struggling.

Not as a dream of becoming more attractive, because that medal becomes awfully hard to reach when you look at things from this angle.