This happens to me all the time. I call it worse case syndrome. I ALWAYS think of the wjorst case synerio. IE my kids are running in the house and I just think that they will fall and break something, or when I was in the train I kept thinking that it would derail and kill everyone in it. I don't know how to get rid of these. I don't think that it is a cureable thing. weell hope to you the best. If you find something let me know.