Hey, I've got the same problem. Anxiety is terrible and been getting pvc's daily, is metoprolol a beta blocker? I took them for a couple of month but my pvc's didn't stop. My heart rate came down but I was worried that it came down to much. I started to feel about funky from them.. what you should try it's loads of fruit and vegetables. Bananas are good for a lot of things and one of them is a healthy heart. Also heard magnesium is a good option if you don't have kidney disease. You can buy it over the counter.
I have the exact same thing the combination together is fine I do it all the time it's the only thing to calm me down and bring my heart rate under 100 bpm
My anxiety is health related as well so I feel your pain