My 13 year old son became obsessed with the "concept of suicide" earlier this year after his middle school held a suicide prevention day. He never even mentioned the word suicide before that day and now he thinks about the concept of suicide very often. He assures us he is not actually going to kill himself and he doesn't show any of the "typical" signs of doing so. He's a happy kid always laughing and having fun. He has had these boughts of obsessions in the past regarding other topics. He was extremely afraid of tornadoes for two consecutive summers where he wouldn't even go outside on sunny days. He was also mortified by the thought of getting his blood drawn even though there were no plans to do so at any time. These fears eventually went away over time. He is on the Autism spectrum and has ADHD. He is extremely smart and high-functioning and is mainstreamed in all his classes. He has had a therapist for many years that has been helpful in calming his anxieties. He has been talking to her about these new thoughts for months now and she also believes that he is in no immediate danger and that he is not going to actually harm himself. Has anyone ever heard of this before? Someone who is obsessed with the concept of suicide, but not actually suicidal? If so, any thoughts on how we might be able to help him move past this?