overtraining lungs?

we all know overtraining do you no good, but does that only refer to skeletal muscles?
How bout cardiac and pulmonary systems?
Can they get damaged due to overtraining?
My skeletal muscles always seem to do fine - low lactate buildup, no post training sourness, no aching or pain. But my lungs seem to be screaming, if I push it.
How bout cardiac and pulmonary systems?
Can they get damaged due to overtraining?
My skeletal muscles always seem to do fine - low lactate buildup, no post training sourness, no aching or pain. But my lungs seem to be screaming, if I push it.
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I think that pain in the lungs is entirely normal.
Try harder
I suppose I'll know I'm getting somewhere if my legs start demanding more oxygen than my lungs can supply. Or will that mean one of my lungs has collapsed?