a very unusual problem

I am five feet, ten inches tall and all my life I've had trouble buying pants that are long enough.  Earlier this week I did some on-line shopping at JC Penny (they carry tall sizes, bless them) and among other things, I ordered a pair of navy blue dress pants. They arrive in the mail today and I eagerly tried them.on.  I had ordered my usual size and they fit nicely around the waist and hips but, wait for it, they were too long.  They were actually dragging on the ground, even after I put on a pair of heels.  So I've decided to stop by Pennys tomorrow and see if they have the same pants in a regular size.  If they do, and if they fit, do you know what this means?  I'm average... The world is catching up.