I have been diagnosed with GAD and have been on Zoloft and Niravam since January...I had really bad health anxiety. Over that time, I have had a couple of days in a row where I get like a "hard" heartbeat every 1/2 hour or hour or so...Just 1 or two thumps and that's it...I think it has happened twice before this most recent bout and it usually lasts a couple of days and then goes away..I have been for EKGs, stress, echo last year which came back fine. Has anyone else experienced this "hard"/skipping/flutterinf heartbeat feeling? It's just like a "jolt" in my left side of my chest that lasts a second and goes away. Thanks!