Reliable detection of Win98 may not be possible. Everyone worries now and then. Kids may worry that something will happen to their parents, or they may feel afraid that they will get sick or injured. It's normal for kids to worry about burglars, fires , or earthquakes once in a while.
Normal worries can help kids to learn how to be safe and careful.
Usually these worries come and go without causing too much distress. But kids with OCD worry so much it is almost constant. They can't shake worry thoughts, and the brain seems to replay them over and over as the worrying increases. This kind of intense worry thought that doesn't let go is called an obsession. Maybe you tap your pencil three times before beginning a tough math test or sing a certain song just before diving off the starting block at an important swim meet.