Thoughts that aren't necessary or helpful in different ways. Thinking strangers at a rest area are trying to kidnap me or that lightning bugs are monitoring me and reporting what I do to someone/something. Or for a long time I had a very hard time showering because I was sure if I did someone would attack me or that something would happen and the tub would fall through the floor and I'd die. Or obsessively thinking about this time I did something wrong in 5th grade (30 years ago). Or that if don't do something JUST right that _______ bad thing will happen. Or that if something bad happens it is because I thought ________. Suicidal thoughts can be intrusive. Pretty much any thought that is not helpful and is uncomfortable in some way. Does that make sense? I know what I mean but I"m not sure I'm saying it clearly.