Heart is acting up....

A couple of years back I had heart problems. We're if I was stressed or depressed my heart would have an extra beat in it. And a couple of days ago my heart started doing it again...I've tried my best to relax and not get stressed. But nothing's helping. I've not been myself for the past couple of weeks. I'm not happy with myself. Every little thing gets me down. I cry a lot more then I did. And idk what to do....😞