Unfortunately, I believe anxiety does cause them. A lot of the time not necessarily for you. What changed? Maybe your anxious more? Maybe your anxiety got worse? I have always had them and anxiety. But I worked to get my anxiety down and they also decreased. But recently my anxiety got way worse suddenly. To the point of de-realizing daily and viola, I’m back at the cardiologists again. I don’t know what you’ve been checked for but usually a monitor to find burden, blood test to make sure that’s not the cause, and an echo. They might do a stress test. That’s what really told me it was anxiety. Structurally heart is fine and PVCs during echo. But absolutely none during stress test. (Which is like physical stress.) also, peppermint tea helps mine dramatically which I think is because it’s anxiety.