Gauging Severity, Questions for My Next Cardiology Appointment?

Ok, so I'm starting to come to grips with HCM, but I'm still pretty nervous about it. The stress test was considered "normal", but the transthoracic echo was what caused my cardiology doctor to diagnose Hypotrophic Cardiomyology. I had an MRI last Sunday, here's the IMPRESSION (the Radiologist's report?). Can anyone tell me what this means? What numbers are to be my guide for determining severity?

IMPRESSION:

1. Left ventricle is normal in size and systolic function. Calculated LVEF is 55%.
2. Concentric LVH with the maximal wall thickness of 1.6 cm in the basal anteroseptal segment
3. Diffuse LV subendocardial delayed enhancement from basal to apical segments with prominent mid-myocardial in both the RV insertion points. DDX: Cardiac amyloidosis vs hypertrophic cardiomyopathy
4. Systolic anterior motion of the anterior MV leaflet with LVOT flow acceleration at rest