Hello! My heart has been randomly skipping beats, pounding, and fluttering. As I ve been lying down it s done it about 10 times in 20 minutes. When I lie on my stomach, back, or left side it feels like pressure is building around my neck. I had an EKG today and that, along with everything else, is textbook. But the EKG only measures a very short time. I m very nervous something could be wrong. Every time it skips a beat it almost takes my breath away. Any idea what this could be? Thank you!