OCD is triggered due to breach of trust. It has two clear components a) obsessive thoughts b) compulsive thoughts. Compulsive thoughts are the one, which trigger in our mind on its own and we have poor control on their arrival in our conscious mind. We all have such thoughts all the time due to disturbance in emotional body but since mind is balanced, as normal person, we are able to control them and focus on normal life. However it is an effort. When intensity and periodicity of such compulsive thoughts become higher and reach a critical mass, they turn obsessive and our control on them is now very fragile.
Early Symptoms of Disorder Regardless of the type of disorder, depression (or depressive state ) is the gateway for any disorders and there are common symptoms across almost all the disorders. Of course, it may vary in degree and type for specific disorder. Lack of sleep/disturbed sleep/nightmares/fast running thoughts during sleep/seeing colors in dream/waking up tired Shallow and fast breathing Absence/excessive of sexual energy Fatigue and weakness in legs and arms Pain and pressure in forehead region