iPod Nano freeze & a visit to an orthopedic doctor

Quickly flipping through the menu to start my run, my Nano froze :-( Ergo today's run isn't recorded on the Nike+ and Runner+ sites. Per the treadmill, I ran 4.60mi. No major shin pains even though I used my problem shoes.

Visited an orthopedic doctor today for a consult on my shins. He thinks it's just strained muscles and too much running. Just to be sure, he asked me to get an AP/Lat xray of my right leg from knee to ankle joint. He didn't ask to see my shoes nor check the way I run. Recommended that I research on stress fracture and compartment syndrome.

Will get a second opinion from a sports doctor... and also a new pair of running shoes.