It's one of your little "Quirks!" It's far from being a bad thing; unless, of course, you take it to an extreme.
I have some really bad days with my minor OCD that can become really annoying; I've spent 15-20 minutes before just checking to make sure that a faucet was turned off, or a door was locked. It's annoying, but I've come to accept it. I generally try to hide it from people (It's a pride thing, not a "I don't know what they'll think of me" thing) and I do a good job for the most part. I just know it's a little quirk of mine, and that I have to accept it. *shrug*