I think this could do more with your running form and listening to your body than your will that kept you going. It might be worth checking out your form with a running coach. Either way, wishing you a speedy recovery.
You can absolutely injure yourself by running too much, even with perfect form, and before you would notice anything is wrong while "listening to your body".
Yeah, people say "listen to your body" like this is simply a settled issue and all you have to do is make a decision to be more responsible. Researchers have barely even begun to properly unpack variations in interoception or RSI susceptibility, let alone the interactions between them.
I think you missed the point. Regardless of if their form was good or bad they ran through the pain. Shin splints and pantar faciticus are really bad to do that with as the recovery takes forever and you just can't do anything during it related to that area.
I think your getting downvoted as you answered x when they were discussing y.