I suggest looking at trypophobia here https://en.wikipedia.org/wiki/Trypophobia https://en.wikipedia.org/wiki/Trypophobia (PLEASE DON'T GOOGLE THAT BEFORE YOU

I suggest looking at trypophobia here https://en.wikipedia.org/wiki/Trypophobia https://en.wikipedia.org/wiki/Trypophobia (PLEASE DON'T GOOGLE THAT BEFORE YOU KNOW WHAT'S THAT). Only in the last decade it was identified and classified as a different reaction than fear and disgust. It is theorized that we have it to protect us against skin parasites (pathogens, insects) - and hence the skin shivers. See "Skin-transmitted pathogens and the heebie jeebies: evidence for a subclass of disgust stimuli that evoke a qualitatively unique emotional response" https://sci-hub.tw/https://doi.org/10.1080/02699931.2016.1202199 https://sci-hub.tw/https://doi.org/10.1080/02699931.2016.120... for a nice overview.