ocd. psychiatric symptoms that need to check things repeatedly

action adhd and anxiety arranging awareness behaviour brain can check checking cognitive compulsion compulsive concept control depressed depression diagnosis disease disorder disorders doing fear health hoarding illness illustration intelligence irrational medical mental metabolism mind monozygotic need not obsession obsessive ocd paranoid patients personality psychiatric psychiatry psychological psychology psychotic repeatedly repeating rituals serotonin sexual something stress striatum symptoms syndrome thalamus that their therapy things thoughts twins when word worry