So basically a few days ago when I was trying to sleep it felt like my heart was beating irregularly, I've only become aware of it now for some reason but sometimes it feels so slow it might not beat again then at random times even when I don't feel remotely anxious it races, other times I feel my heart POUNDING and other times it's just a flutter. I feel it most days and I want to cry because I honestly think I'm going to have a heart attack and die. Don't make fun of me I'm being serious. I've heard so many stories of undiagnosed heart conditions, I told my dad and he said it's all in my head and I shouldn't worry, this is probably the case but I'm freakint out to the point of tears. Someone tell me if this is normal HELP