Trevor's heart was pounding after he ran up three flights of stairs. he immediately began to think he might be having a heart attack, which made him even more physically aroused, and this, in turn, made him more panicky. according to the ,trevor may be a victim of his own illogical thinking and may be misinterpreting and exaggerating normal physical sensations. catastrophic cognitions theory of panic disorder evolutionary theory of panic disorder biosocial developmental model of panic disorder the triple vulnerabilities model of panic disorder