Exercise-induced anaphylaxis
Exercise-induced anaphylaxis (EIA, EIAn, EIAs) is a rare condition in which anaphylaxis, a serious or life-threatening allergic response, is brought on by physical activity. Approximately 5–15% of all reported cases of anaphylaxis are thought to be exercise-induced.
Source: Wikipedia — Exercise-induced anaphylaxis (CC BY-SA 4.0)