hurts to run..

[Jess]

today in gym we had to run (inside) down a hallway and up and down the stairs for 10 minutes. after 5 minutes I couldn't take it anymore and it started to hurt when I breathed. Also I could barely go up the stairs, it was as if my legs were suddenly heavy. I don't understand.

Last year we ran and my legs never really hurt that much. I don't understand why this year I could barely run. my legs get so sore.

[Kaius]

How often do you run/do heavy exercise Jess?

[AutumnDae]

You're out of shape, simple as that.

[trackstar9.875]

You need to see a Doctor; You have breathing and leg problems, and these symptoms could just be a sign of other things.

Difficulty breathing: I once had a punctured lung, and it was impossible to breath.

See your Doctor - NOW!!

[xXWatEvsXxXx]

also try getting new running shoes, that can always help

[scuba steve]

You need to see a Doctor; You have breathing and leg problems, and these symptoms could just be a sign of other things.

Difficulty breathing: I once had a punctured lung, and it was impossible to breath.

See your Doctor - NOW!!

Because it's so easy to diagnose her with such a serious medical problem with the three lines the girl has posted onto an internet forum, without knowing anything about her physical well being.
More than likely i would simply say that you are out of shape, haven't stretched properly or the chance that the pains in your legs are simple growing pains, which are quite common in adolescent years. Another factor that would help you to see what possbile problems could be, if you where to post your current weight/BMI (this is sometimes awkward for girls i've noticed lol it was just an idea to give us a more clear insight towards your health :))

[Jess]

You need to see a Doctor; You have breathing and leg problems, and these symptoms could just be a sign of other things.

Difficulty breathing: I once had a punctured lung, and it was impossible to breath.

See your Doctor - NOW!!

I don't really have breathing or leg problems. I think I am out of shape. I will have to try to get to the YMCA more...

[Zazu]

You're out of shape, simple as that.

This.