Thabang, a junior accountant, is regarded by his boss as a dedicated and energetic young man who works very hard and is passionate about his job. However, since being involved in a motorbike accident about two months ago, Thabang constantly finds himself experiencing feelings of anxiety and confusion about the events surrounding the accident, and his boss has noted a significant drop in his work performance. Which of the following factors for judging abnormal behaviour are applicable to Thabang’s situation?