There are as many "types" of OCD as there are people on the planet.
OCD is a very lonely disease because it's so specifically tailored to the person suffering from it. It's literally that person's personal hell.
Since no one fears the same things to the same degree, no one suffers the same symptoms.
My OCD acts in phases. I've gone through cycles of being a germaphobe, where I cleaned for hours and hours and burned off the skin on my hands and arms and knees from using sooooo much bleach on everthing. Then that turned into thoughts that something was wrong with my car engine, or that I hit someone with my car while driving, or that I was going to run out of gas while driving. I was going to different mechanics every other day and filling up my gas tank literally every single time I had to drive somewhere. Sometimes I'd only put less than a dollar in my tank. I'm sure the cashier at the gas station thought I was peculiar, but I couldn't help myself.
I've had phases where I was convinced I had colon cancer. I went so far as to have a sigmoidoscopy, an endoscopy, and a colonoscopy - all the the tune of thousands of dollars and, you guessed it, no cancer. I just could not be convinced.
I go through periods where I have to line everything up a certain way, where I have to make lists of EVERYTHING IN THE WORLD. One time I had more than 1000 lists that I had to keep track of, and we're not talking to-do or grocery lists (though I did have those, too). I had lists for every single television program on the cable networks, categorized by channel and the time they aired (including reruns). I had lists of all the food in the world that contained Vitamin A, including percentage. It went on and on, and it was miserable.
I've gone through counting phases. Repeating phases. Etc etc etc etc.
I've gone through phases where I didn't like the texture of certain things. One time, I freaked out and totally threw everything away in the house that felt sticky - lotions, gums, cleaning supplies that left residue, fruit, tape, etc. I put it all in a trashbag, then that bag into another bag. Then I threw it all in the garbage can and dragged it out to the street. Then I laid in bed at night panicked because I felt like the stickiness was still to close to me.
OCD is a relentless disorder that can and will completely take over your life if you let it. It will ruin relationships, end careers, and alienate you from your friends and family. The MOST IMPORTANT thing you can do is seek help from a qualified professional. YOU CAN NOT CONQUER THIS DISEASE ON YOUR OWN. If it was that easy, I woulnd't have it anymore. You need medication or therapy, or a combination of both.