Hi, about a year and a half ago I almost had a heart attack, my blood pressure was 140/90 and my heart rate was hovering around 120. I was 22 at the time. According to the doctor there is a chance that I have inherited Dilated Cardiomyopathy, my cousin died from it at 19. This past week it feels like I can't get enough sleep, my chest feels tight and I'm having trouble breathing along with chest pain and an abnormal heartbeat. I have also noticed that several times throughout the day my nail beds will turn blue. My question is what are the odds this is in fact congestive heart failure, and is it getting worse if so?