Had an ecg 8-9 months ago and it said i had 'non-specific stt-wave changes'. had another one this month and got 'prwp on v1-v3' what does it mean?

ECG results: Electrocardiograms are interpreted in the context of patient history and symptoms. “Nonspecific” means that no specific diagnosis can be made from the test. “Poor R wave progression” can indicate how the heart is oriented in the chest, or a problem with the heart muscle, or (often) that the chest electrodes were placed in slightly incorrect locations. Consult a cardiologist to review them with you