.# i'm sean fletcher and this is my son, reuben. a reporter, but i didn't know anything about mental health until two years ago, when he developed obsessive compulsive disorder aged 13. it might not sound that serious, but ocd filled his mind with irrational worries, which frightened him so much, that he was sometimes unable to move. can you tell me what ocd was like when it was at its worst? i might be worried that i'm going to do something really bad like i'm going to accidentally kill you. it's like, it starts to develop into oh, my gosh, i thought i was... i had the thought that i was worried i was going to kill you, so then surely that means i want to act upon that. and did you have that thought about me? yeah. i felt i was such a bad person for having that thought, that to punish myself i stayed in bed and wouldn't let myself move. just try one step this time. my wife and i were very worried about reuben. but we found it hard to show medical staffjust how bad things were, so we decided to video him in the midst of an episode.