What is breathlessness?

One can assume breathlessness could be either benign or malign.

Benign:
A simple touch on the hand. The sweet sound of music. A gracious smile. A sigh of relief. A smile in accomplishment. A friendly hug. A reassuring glance. Is this really happening? A dance in the rain, muck boots and all. A flawless idea, nonrestrictive. A trusted secret. The joys of a harmony. A kind word of encouragement. A subtle phrase of irony. A joyful song, sung over and over again, emitting joyfulness to everyone it reaches. The joys of being together. A simple pleasure. A firm understanding. The wonderful feeling of being breathless; tears of joy breaking through.

Malign:
A feeling of regret. A dark secret burning inside of you. The anger wrapped up in hurtful words. A painful nuance of change. An indescribable pain. A feeling of being ignored. A sentence full of flaws. The fear of rejection. A feeling of inadequacy. Am I good enough? The disturbing feeling of guilt, burning inside you, that you cannot extradite. How could I be so ignorant? The fear of bitterness; the fear of not knowing. The pain of being apart. A world of hurt. The confusion of ignorance. The pain of being breathless; excruciating tears breaking through.