Anyone have a scientific explanation for the OCD? I don’t mean why some people get it, I know that’s unknown, but I mean as in what happens to the brain during an attack or why we get stuck on obsessions and can’t react logically like most people would?

Why OCD feels so real?

Obsessive-compulsive disorder, also known as the disease of doubt, has a very crippling effect on an individual's ability to function at its worst. This seems to happen especially when the individual's obsessive-compulsive disorder is thematically related to violence, sexually inappropriate thoughts or other taboo topics. When the vicious circle progresses far enough, a person no longer necessarily knows himself at all, is not sure of who they are or what they want. I believe that the background of obsessive-compulsive disorder, like the background of mental health problems in general, is a feeling of disgust and revulsion towards some thought, scenario or self. The way in which obsessive-compulsive disorder manifests itself, especially in the so-called "pure o" form, is very complex, because the individual disgust-inducing thematicity manifests itself not only in thoughts but also in the form of feelings, temptations and physical sensations. In some cases, however, this goes so far that the person's beliefs about his own integrity begin to decay and the feeling of hope and the meaning of life disappear. The idea can be clarified analogously to Nietzsche's thoughts on belief systems. As a result of obsessions and other repulsive thoughts, feelings and temptations, a person's belief system about his own integrity begins to collapse, but when the belief system collapses - the belief in that belief system itself collapses as well. When it no longer seems meaningful or possible to believe in the realization of a familiar and safe belief system, there is also no hope for anything better. So there is no longer even hope left for a meaningful whole of self, which drives a person to deep anxiety and depersonalization, which in turn begins to displace a person from social relationships and from all meaningful activities that a person is used to enjoying and creating meaning for his life based on his own complete self-concept, which is no longer felt to exist. Any thoughts or similar experiences on this?

How and why does OCD make us feel like we want to do what our thoughts are?