Afeng, who was sitting in the consultation room, looked soft and frail, and spoke softly.

She said: Teacher, I was always worried when the door was closed and I had to check it many times, but it did not affect my ability to go to class. But recently, it seems to have become serious. I have already walked to the school classroom, but I still keep thinking about whether the door is locked or not. I always think like this, even in class, and after class. My mind is too tired!
Me: What happened recently?
Afeng: I went to a normal school. When I was in the third year of college, I could apply for the " junior college to undergraduate " program. I really wanted to sign up. However, there was recently a basic skills competition for normal college students in the province, and the teacher wanted me to participate.
Me: Well, is there any special reason why the teacher asked you to participate?
Afeng: Because in the past few years, I have been ranked first in the academic year, and my basic skills are quite solid, but I also want to upgrade from junior college to bachelor's degree. These two things are a bit conflicting, which makes me feel a lot of pressure.
me: Is there any other reason?
Afeng: A few days ago, my roommate returned to the dormitory at night and forgot to lock the door before going to bed. How scary! Another roommate forgot to take out the key when he went out. Although I also know that these things are accidental, it makes me more nervous and I check the door lock more and more times. I always feel like something is going to happen. Am I suffering from obsessive-compulsive disorder? can you help me? It’s such a pain to have this happen all the time!
