BALL's respone to "What is Abnormal?"

I'd like to answer the question 1 and 2 respectively. In my view point, people who are normal fear due to natural instinct of survival different from a phobia. For example, while you are walking on the bridge and you are holding your bag. Suddenly, the bag slip from your hand into the river you try to grab it, but it has fall into the river and you don’t jump down into the river because you fear that is a cause of the natural instinct of survival. In contrast, the phobia is a symptom which is unreasonable fear and they can not control their fear. For instance, some persons fear when they confront with something such as eggs, mongo, and so on. Moreover, I often met to psychologist since I studied in bachelor’s degree at university. I met to her and told her about my symptom. She told me this symptom was not extraordinary; everyone could be same as you if they repeated to do something a lot. My symptom was strain as a result of reading books too much. Finally, she taught me about behavior therapy which helped me a lot!