I am 25 year old. Its since 4 years I am feeling depressed. The constant thoughts are running in my mind. Like songs , and what if this will happen, death of family members what will happen then, and songs, all are running constantly. Sometime I think heartbeat is high, sometime I think that my body looking weird. I can not stop myself. Sometime I think that should I do this which is wrong or not but and somehow I stop myself. Please help me. It looks like when I will be cured then world will change. Old memories, childhood memories, or past incidents comes into mind. What to do . I can not sleep a sound sleep. When I wakeup it look like I had not slept. What to do.