Hyperventilating
Hyperventilating and variants may refer to:

Hyperventilation, the act of hyperventilating
Hyperventilation syndrome, a medical condition involving hyperventilating
Cheyne–Stokes respiration, the breathing disorder
Hypocapnia, a physiological result of hyperventilating
"Hyperventilating" (song), a 2006 song by Tami Chynn