I have PACs. Sometimes (very rarely, maybe once or twice a year only, thankfully), I have what feels like a bunch of PACs in a row. Usually, it is about 3 (which is a bunch for me). My doctor tells me this is likely SVT, though it has never been captured on an monitor or EKG. I know lots of folks here get SVT, and I thought it would feel like a really fast heartbeat, but this just feels like a normal PAC (the roller-coaster up and down feeling) but just a bunch of them in a row. It really just feels like a "bubbling" sensation in my chest, and not a fast heartbeat or tachycardia at all (I do have sinus tach from time to time). Can this be possible that it's SVT? If it is, then why wouldn't it feel fast to me? Thanks!