@indigogirl Wow, that must certainly be a shock to hear! Has your doctor sent you to a cardiologist yet? If not, it is definitely time to go as soon as possible.
You also need to be referred to a heart center where they deal with cardiomyopathy. It is rare, but it does happen to young people. They can help you explore your options
Do you have a support group in your life - either friends or family?
Sue