what can cause low anterior forces on a ecg. I have palpitations at times that make me short of breath. there has also been ecgs with sinus bradycardia/low anterior forces/nonspecific T way abnormality, and another that shows sinus rhythm with sinus arrhythmia/nonspecific ST abnormality this has all been three different ecgs within a 3 month period but my internal medicine doctor is telling me that its not for concern because a holter monitor only showed one episode of a palpitation