I have been experiencing ankle/shin pain in my left ankle since I started back on the treadmill. Is this normal? My coach said that it could be from not running that much because of winter break, and then starting back on the treadmill (Note: when I did run over break, it was outside). Now it only hurts severly at the end of my runs. Walking hurts, and pressure on that ankle will hurt as well. It will hurt a little bit the next morning, but after I am moving around for a while, it goes away for the MOST part. What could this be? Shin Splints? Stress Fracture? Please Help me. I am running a 15K road race in July.

(I have Asics shoes, and had them fitted by a running shoe salesman. coach recommended them)

Sorry for the length