hi doc, recently i had palpitation and breathless very often. i went to see a cardio doc and he already taken CT SCAN my heart and all did all the test as stress test, holter, ecg and echo. but the result never show heat block or heart disease. but i wonder is, why my palpitation is stil on and off even my stomach is empty. actually i got gastric. is gastric or hormone problem cause palpitation, stress, emotional and breathless? what shall i do now doc? now my age is 47 female.