What are the causes of hyperventilation syndrome?
One of the main causes of HVS is anxiety which is brought on by stress.
Stress can be bought on by all sorts of different factors. You may be the sort
of person who has generally been a worrier. Or you may have had some
particular recent stressful experience (e.g. bereavement, family conflict,
financial problems, work problems, other major life changes) that has led to
increased anxiety. This is more likely if the incident was experienced as life
threatening (e.g. a work/road traffic accident or a serious illness).