Hello doctor I have palpitations and anxiety. So I done ecg it showed sinus tachycardia. And I done 2d echo it was normal. Later I done another ecg after a week it showed normal. I'm using beta blockers now. But while stopping I'm feeling a little palipitation while moving like something is come down from head to neck and to heart. what is the reason? Pls help me out. Is there anything to worry? Also I'm feeling weird electric like sensation somewhere in my chest and back of the neck .it is unexplainable what is the cause for this?