you are kidding me if it is :(
i run
am training for half marathon, currently run between 7-9 miles, 2ish x weekly
last few times AFTER I HAVE FINISHED right foot quite painful, on the boney bit of the instep. feels a bit like someone has stamped on my foot. i can walk fine, stand on tiptoe, bend foot etc, no swelling/bruising etc BUT if i stand on it wrong then v sharp pain :(
lasts around 24-48 hours, then fine 
only happened since i bought new trainers specifically for my foot-type (neutral). have tried lacing them differently but still not good :(
WTF is wrong? i have googled but surely stress fracture is not right?????