hyperventilation
noun /ˌhaɪpəˌventɪˈleɪʃn/
/ˌhaɪpərˌventɪˈleɪʃn/
[uncountable] (specialist)- a condition in which you breathe too quickly because you are very frightened or excited
- The symptoms of hyperventilation can mimic all the symptoms of anxiety and chronic stress.