Quote Originally Posted by TahoeDirtGirl View Post
One is mitral valve prolapse and the other is pvc (pre ventricular contractions or complexes depending on who you talk to). The pvcs are just irritating as they feel like there is a marble stuck in your heart. When I don't drink enough water or my electrolytes are off, it acts up and usually shows up as a higher HRM when I exercise.
That's an interesting description--never heard that one before! I get them sometimes too and I'd describe them as feeling like my heart is doing flips!!