I have been officially diagnosed with OCD, yes. I don't take anything for it, though. It's not particularly severe, but I do have it. I also suspect I have an anxiety disorder.
My older son and daughter both have OCD...and my daughter does too...I have it very, very mildly...I just like things tidy and am a teensy bit obsessed about food hygiene and germs.
Talking about mental illness is like talking about the "perfect body"---it's usually a question of degree rather than total dysfunctionality.
Anecdote---I once commented to a fellow employee, "Well, you know how my mind works." He stopped, looked at me and said, "No one knows how your mind works." So maybe I am undiagnosed.