I'm 26 years old, and in good healt. I dont smoke, and only drink on occasion. I went to my Dr and he did an EKG on me ( my mother recently passed from a heart attack) and he is now sending me to get a echo stress test. My ekg came back saying that my PR intervals were abnormal...is there any cause for alarm? I'm still geting over my mom's sudden death she was only 47. Help!