hysteria

noun

1. (uncountable, usually)Behavior exhibiting excessive or uncontrollable emotions, in a wide range from joy to panic but usually including anxiety or fear.

   “At the very end of the Middle Ages, Breughel depicted country folk wrapped up in fits of mass hysteria, and the historical accounts of these rural frenzies have explained the delirium in terms of the slender diet on which the poor had to subsist during the hungry gap.”

2. (uncountable, usually)A mental disorder characterized by emotional excitability etc. without an organic cause.
3. (informal, uncountable, usually)Synonym of conversion disorder.
4. (historical, obsolete, uncountable, usually)Any disorder of women with some psychiatric symptoms without other diagnosis, ascribed to uterine influences on the female body, lack of pregnancy, or lack of sex.