How well do you know your #OCD? 1. Your obsessions - intrusive thoughts, images, and impulses that pop in your head are obsessions. You get anxious. You want to get rid of the obsessions and the anxiety. You want to make sure, i.e., get certainty that the bad things won't happen. Some examples of obsessions - “am I contaminated”, “I want to make sure I’m not gay”, “what if I stab my child”. 2. All obsessions are mental phenomenon – that means the obsessions pop in your head.