Could Left Breast Pain, Dead Arm Sensation, And Nighttime Fast Heart Rate Be Related To The Abnormal ECG Showing Nonspecific ST And T Wave Changes?

33 year old female intially pain presented in my left breast and would give me dead arm for hours, the pain would occasionally radiate to my neck. Doctor noted fast heart rate which occurs more frequently at night I ve noticed. Rhat is why the ecg was done. Vent. rate 87 BPM PR interval 134 ms QRS duration 76 ms QT/QTcB 372/447 ms P-R-T axes 65 80 -5 Normal sinus rhythm Nonspecific ST and T wave abnormality Abnormal ECG