I know breathing is a invol \ vol action but when peoples say they can't breath can you really stop breathing and die? helpppp

Unless: There is an obstruction on your airways or have deep brain damage, you will be able to breath.

Yes: Many illnesses lead to exhaustion and respiratory failure. The lungs can fill with fluid or the respiratory center in the brain can stop functioning.

Usually they feel: Short of breath. It can be caused by anything from a panic attack ( which will not kill you) to a severe asthma attack which can kill you without treatment.