Hysteromaniac refers to a person who is obsessed with hysteria or experiencing it. However, there are several synonyms that can be used to describe such a person. One of the synonyms is "hysteric" which describes a person who is excessively emotional or irrational. Another term that can be used is "hysterical," which refers to a person who is overwhelmed with emotion or having an uncontrollable fit of laughter or crying. "Melodramatic" is another synonym used to describe a person who is overly dramatic or emotional. Other synonyms include "dramatic" and "exaggerated." These terms can be used interchangeably to describe a person who is excessively emotional or irrational.