Ahhhh more struggles with your family
I think at some point its just healthy for anyone with a MI to just not expect family and even some friends to understand, care or believe it... Yes that sounds like total shyt! but.... in reality it is probably the most healthy thing you can do for yourself.
It's okay to be mad angry and flat pissed over this.. grieve the fact that there are some people in your life that are just unable to be supportive.
Just take the best care of you as you can