@thehellyousay
Yes having HCM is definitely a serious heart disease and metropolol is a common medication that Cartiologist prescribe. After testing they will determine the severity of the disease and you may need an ablation so your heart can pump an adequate blood supply. I personally have had two incidents of sudden cardiac arrest due to HOCM and had an alcohol septal ablation. I also have an ICD (defibrillator) due to the sudden cardiac arrest. HCM is also hereditary and your family members should be tested as well.
Best of luck
Jim