Is trypophobia a rare condition? iin?

I have trypophobia. The fear of holes creep me out. I thought my whole life I was the only one to have this until a girl in my class said she does as well. It's not just holes though. Certain patterns make me itch all over. I also have a fear of leaves. Especially wet ones. My friends say I have OCD but I think it's a much more rare phobia. I've not been diagonosed with Trypophobia but I'm certain I have it and it's been getting worse with age. No-one in my family has it. So what is it that caused it and how can I stop it?