What Does An ECG Showing Minor Inferior Repolarization Disturbance With Flat/negative T Waves In AVF And III Mean?

What does minor inferior repolarization disturbance, consider ischemia, LV overload, or aspecific change Flat or low negative t in aVF with negative T in III mean on an ECG mean? I have a history of Paroxsymal Atrial Tachycardia and an ablation almost 20 years ago to correct it. I ve had normal ECG s since.