Extra-Dimensional Anxiety (EDA) is a form of PTSD built around either the general fear of another dimensional incursion or from encounters with exotic cephalopodian entities.
History
Extra-Dimensional Anxiety was brought about by the Dimensional Incursion Event in which a giant "alien" squid monster (secretly created by former costumer adventurer and billionaire industrialist Adrien Veidt) was violently teleported in the middle of New York City on November 2, 1985, causing a deadly psychic shockwave that wiped out half of the city's population as well as the surrounding metropolitan area. Many survivors of the disaster later ended up suffering from horrible anxiety and trauma due to being within the radius of the psychic blast, with the psychological toll being so severe that it was even locked into their very DNA . Those who were born after the incident inherited their parent(s) genetic trauma. EDA is also caused by encounters with exotic cephalopodian entities that appear through random showers across the Earth that are still occurring 25.4 times a year on average.
Description
Common symptoms are flashbacks and obsessive rumination, hyper avoidance and hyper vigilance, negative changes in identity, relationships, or worldview, and paranoia, thrill-seeking, and suicidal thoughts. Just like with other mental illnesses, there is a common misconception that EDA isn't real. However, according to the Veidt Institute for Extra-Dimensional Studies, it is estimated that more than 50 million people globally suffer from EDA. EDA is less of public concern in the 21st century, which causes it to be even more problematic if someone has it. Treatment options include cognitive processing therapy, prolonged group and exposure therapy, stress inoculation training, eye movement desensitization and reprocessing, and pet therapy.