My early OCD symptom: I feared that I might to eat corpse.

My teacher said a story about sleepwalking in my 2 grade of primary school,  a crazy man who sleepwalked to the tomb and dug tomb to eat corpse every night . This story brought me a great fear that sleepwalk to eat corpse, then I slept on the side against the cemetery near my home in that time. I knew the reason was I fear that I might sleepwalk to that cemetery and dug the tomb and ate the corpse. Now when I look back this experience, it is really stupid and unreasonable, but I also know that I could not help my self to fear an unreasonable thing in that time for that is a symptom of OCD, an psychological disorder I have been diagnosed in 2 grade of college.