I just received a reply from my neurologist who says this looks good. So no heart issues...thankfully.
I never reported anything to them. I found it on medical records from the VA from 2009 that I just got. I had a lot of medical information on there they never disclosed to me.
A quick Google search reveals
The NYHA Classification of Heart Disease is: New York Heart Association (NYHA) Functional Classification
Class I: No symptoms and no limitation in ordinary physical activity, e.g. shortness of breath when walking, climbing stairs etc.
Source: wikipedia.
This is something you reported to the doc, not something found on the test.