The only thing you can do is see a Cardio and get a full run of tests done.
Blood, ECG, Echo, Holter Monitor. I just completed all of them. I have some harmless premature and ectopic beats. Echo showed all valves working and heart in structural order.
I was freaking out and stressed as hell for 2 months waiting on all of this to be done. Made all my beat and energy levels look like crap.
I am told I will live and am fine to continue life as normal.
Get yourself checked out and don't stress while doing it