Hello -
While the persistent soreness (may be lungs, may be chest wall irritation) is of some small concern, the taste of blood after having performed high intensity exercise is a complaint/report heard often. While it can be caused by any number of pathological problems (such as
asthma, sinus problems, excessively dry air, etc.), it is most often caused by blood being forced through membraneous tissue in the lungs (the alveoli mainly) and even on up into the bronchial tree at times. This happens routinely when pushing one's self to the threshold of an anaerobic state (past the point where the cardiopulmonary apparatus benefit). How quickly this can happen depends upon the baseline fitness level and general health of the person in question, but it is a very common thing and one hears it every so often in cardiac rehab groups, from the overzealous recoverers. If there is no actual blood produced by
coughing it can be considered normal and perhaps a signal from the body to push not quite so hard at the limits.
If the soreness persists into the next day, this is another matter,and ought to be looked into by a healthcare professional, to be certain there's no chronic problem (again, such as
asthma), although when one has pushed one's self to the limit, the accessory muscles to start to come into use (as in an
asthma attack) and this can cause some lingering soreness and tenderness that can easily be mistaken for "lung"
pain.
I hope this helps answer your concerns. Please follow up with us as necessary.