I've had that before, I also get that feeling of an electric buzz on my head, and until I read the other posts I thought it was only me, anyhow you are not alone and I completely relate to you. Right now I'm trying to convince myself that the Dr. is right and my heart is fine. I feel it beating thru my whole body, but my BP is fine and I had a cardiogram too and it was fine, I know how scary it can be, you are not alone!
Christine