👉 Reiche's disease is a type of severe allergic reaction that affects the respiratory system, causing symptoms such as difficulty breathing and shortness of breath. It is characterized by rapid heart rate, sweating, trembling, nausea, vomiting, and sometimes confusion or seizures in some individuals. This condition can occur during certain activities, such as exercising, swimming, or climbing stairs, due to a buildup of adrenaline and other substances in the body.