I'm feeling a bit worried because my ECG came back showing an abnormal sinus rhythm and something about an STT abnormality in V5V6. The report also mentioned left ventricular hypertrophy, and I've been experiencing dizziness and fatigue on and off. Just last Friday, my blood pressure was 150110, but then it dropped to 110130 by Sunday. Does this combination of symptoms and results suggest something serious that I should be concerned about, or could there be a more straightforward explanation? What should my next steps be?

Your ECG results indicate abnormal findings, including ST-T abnormalities in leads V5 and V6, suggesting possible myocardial ischemia or strain, and left ventricular hypertrophy, which may be related to high blood pressure, and your symptoms of dizziness and fatigue, combined with fluctuating blood pressure readings (150110), suggest that you should consult a cardiologist for further evaluation and management to rule out underlying conditions like hypertension, coronary artery disease, or cardiomyopathy.