Hello~It sounds like anxiety to me. I, too, have shakes, but they are actually skipped beats and usually always benign. I find the more I stress over them the worse they get as they are usually caused by stress. In a structually normal healthy heart, they are nothing to worry about, some folks have hundreds a day. Here is a link to our excellent heart rhythm forum, it has helped me lots. https://
www.medhelp.org/forums/Heart-Rhythm/show/92
I hope you feel better soon and that those horrid shakes/skips stop.