Hyperventilating is a state wherein a person breathes rapidly and excessively, which can lead to physical and mental symptoms. Some synonyms for hyperventilating include panting, gasping, wheezing, and breathing heavily. Other terms that can be used to describe hyperventilating include overbreathing, hyperventilation syndrome, and respiratory alkalosis. These terms all refer to the same condition but may have slight variations in meaning. Some people may use the phrase "losing control" to describe hyperventilating because it can lead to feelings of anxiety or panic. However, it's essential to seek medical attention if hyperventilating continues for an extended period or becomes frequent.