Does anyone else have obstructive hypertrophic cardiomapathy? I would would like to discuss experiences as there are not too many of us on this board.

Severe obstructive hypertrophic cardiomyopathy.

I am new here and see there are a number of acronyms used and I can't seem to figure them all out.
So far I know SOB is shortness of breath and HCM is hypertrophic cardiomyopathy though I don't know what the M stands for.

Does anyone have a list of Acronyms commonly used when discussing symptoms, diagnosis and treatment of heart diseases and conditions?

Ejection Fraction 25 Heart Failure

Cardiomyopathy: Everything You Need to Know. This is a clever animation that offers some good explanations
I added the time stamps from YouTube so you can skip ahead if you like.

0:00 Introduction
0:50 Types of Cardiomyopathy
2:09 Risk factor
2:44 symptoms
3:20 Treatment

"Cardiomyopathy is a group of diseases that affect the heart muscle.[1] Early on there may be few or no symptoms.[1] As the disease worsens, shortness of breath, feeling tired, and swelling of the legs may occur, due to the… read more

I saw my cardiologist last week and he had me do an Echo. He called me yesterday and told me that the echo was good and was better than the last one (18 months ago). I checked my app and it said the LVEF was 45%. The echo from 18 months ago was 41 - 45%. What is the context of these numbers. What is a "good" score and what isn't? Thanks in advance.