Via Business Insider: "Up to 16% of people (18% of females and 11% of males) become viscerally upset after looking at images of clustered holes, according to the first ever study on the condition known as trypophobia."
There is an evolutionary explanation for this in the article, but I couldn't read the rest of the article, because I was too busy screaming. Still, it's nice to know that your struggles have a name. We are the 16%. Test yourself after the jump IF YOU DARE.