It's a negative connotation which implies the sufferer is disordered. The term is worsened by modern science, which states we cannot dodge genetics, so now the disorder is known to be permanent. And unfortunately, this is why many people believe they are cursed or doomed for life.
Beneath the surface, however, O.C.D. can be tame. This is why cognitive behavioral therapy works, because anxiety tends to disappear when the obsessive-compulsive cycle is broken. The person ...