i know i sound like an overbearing preacher at times but alas, its in the genes and non-negotiable. Bottom line is for all of you running real well, take heed and take days off, go to the massage table, and resist the temptation to keep running all of the time. Since you are all in peek shape, you will lose nothing by taking a few days off and letting the body totally recover/heal. you might not feel it yet, but all or microtears and damaged muscle incurred due to running is there.
cross train even if you are not injured.
don't wait to address injuries and fatigue once they have set in.
how does the saying go, the best healthcare is prevention.