Similar story. After something that felt like a recurrence of a mild covid strain - persistent cough and chest discomfort. I doubled down on my running routine,

Similar story. After something that felt like a recurrence of a mild covid strain - persistent cough and chest discomfort. I doubled down on my running routine, making special effort to inhale and exhale as deeply as possible as I exert myself. Gradually I "coughed it out". Very possibly it's a councidence, but the extra exercise never hurts after all.