symptoms vary depending on the level of fear , they can be mentally, emotional, and physical

basic symptoms would include dread, extreme anxiety, shortness of breath, shaking, sweating, dry mouth, and dread

mental symptoms would include getting bad images in your head, feeling unreal, being detached from yourself, losing control, having trouble thinking anything other then your fear, or going crazy

genetic factors are able to play a role in specific phobias, mostly related to injury or a danger. social anxiety can cause the social phobias or disorders.

western cultures have considered the number 13 unlucky, in Numerology 13 is an evil number. the Code of Hammurabi was the first reference to 13 being unlucky

emotional symptoms would be worrying of upcoming event or whats going to happen next, you would feel like you have to leave the situation, anger, sadness, and hurt

more symptoms are hyperventilation, refusing to leave the house, talk of death

the number 13's bad luck can come from the bible. Judas betrayed Jesus and was the thirteenth guest at the last supper., The next day Jesus was crucified .

on Friday 13th, October of 1307 Philip IV arrested and killed many Knights Templar, people think after this event specifically is when this date became unlucky.

the fear can be traced back to a myth of 12 gods having dinner at Valhalla, they were interrupted by a 13th guest, the evil god Loki

rapid heartbeat, suicidal thoughts, nervous giggling, ritualistic behavior