You're right. So (I agree with you but from here I'm trying to think about some path to search an explanation) maybe could it be explained by some long-term lea

You're right. So (I agree with you but from here I'm trying to think about some path to search an explanation) maybe could it be explained by some long-term learning of the body-mind connection under repeated stress situations (like being in a crowd while being self-conscious), and then it repeats itself without the obvious stimulus? What I resent, actually, is when physicians are presented with a package of somatic symptoms and sympathetic/parasympathetic symptoms, and readily discard the somatic part in order to jump to the "panic attack" conclusion.