When i finished my run today, i noticed that on the inner part of my right shin, i could feel a sensation at random moments. they weren't intense at all, they don't hurt at all either, but its just a weird feeling that i'm not used to. They dont happen when im walking but when i'm sitting down or resting. could this be the start of a stress fracture? i dont think it could be shin splints because it is on the inner part of the shin. has anyone had a similar experience? what do you guys think?