I got diagnosed with a Pars fracture over the summer, apparently it's very common in adolescent sports people, causes me pain when I'm running up hills though.
Oh right, haven't heard of that before. I'm pretty sure mine is related to sitting down for long periods of time and not giving my back proper support. The good thing with mine is that once moving it's fine, just makes me hobble like an old man after I get out of the car/stand up for a bit. Think the office job I just applied for may not be the best option!