For a couple of years I've been having a lot of extrasystoles. Usually right after exercise, sometimes in rest. I've had a holter and a bike test but the doctor said everything was fine and I have a normal heart.
Since a couple of months I've been having short episodes of something that feels very differently. I'll be sitting at my desk, or talking to someone, feeling completely normal, and then suddenly my heart starts beating very irregularly. Not like extrasystoles when it skips a beat but there's still some rhythm, but just erratic. It scares the hell out of me. But it only takes like ten seconds max, and then it stops and my heart is calm again.
Is this V-tach? Is it dangerous? Should I do anything?