I guess it does make sense that we all react to the same thing in different ways. Part of what makes the human race so unique. Fears are emotion based. The emotional triggers associated with those fears must be addressed. Most of flying fears stem from a lack of control. Much like sitting in the passenger seat when driving can cause more stress than being behind the wheel for the same given situation. Not a big deal if the occurences are few and far between. However, if you are confronted with these emotional triggers on a regular basis, it is best to get help rather than tough it out.