@jozie16 Usually the 'skipped beat' feeling, maybe with a strong thump at the end, is known as a PAC, or premature atrial contraction. SVT, your formal diagnosis, is not a PAC, or rather the other way around...a PAC is not within the greater arrhythmia set that is SVT. People describe what they feel, and helpful listening physicians reply that it's palpitations. It's never a diagnosis, just a way of feeding back that they're listening and understand the sensations involved. PACs really are a pause followed by two catch-up beats that come close together, and one of them is a doozy, often felt as the big one. It's unsettling, but every heart alive this moment has one, six, twenty each day. They're normal. They can climb in number and present an unreasonable, even a morbid, 'burden', typically several thousand each day where the cardiologist would want you to see an electrophysiologist. Also, PACs tend to be forerunners of eventual atrial fibrillation, and AF and SVT are in the same drawer.