First, I agree with the many cardiologists, MDs and medical people who point-out the harmlessness of PVCs, in people with structurally sound hearts but as we who experience episodes of frequency with them know, they are not harmless to one's quality-of-life and emotional well-being. We therefore must develop coping skills and if-needed, take medications that help us deal with them.
The reason I can tie my PVCs directly to my anxiety, is due to the fact that I've suffered generalized anxiety and occasional panic attacks for 31 years. My PVCs have occurred at times in my life of severe stress and anxiety. Amazingly, I have actually gone years at time, not noticing anything other than a very occasional PVC. Afterward, a phase of them might show up and last for weeks or months.
I feel that people who have posted, saying that stress and anxiety was not involved in their PVCs, have the type personalities that deal better with stress/anxiety than some of the rest of us. In other words they can have significant stress but don't perceive it as others do. I say this because if they had no stress/anxiety, their posts of concern regarding their PVCs would not be appearing on forums. They likely felt a PVC or two and began to subtly anticipate them and also likely experience little adrenaline surges when they occur, that causes succeeding ones or even runs of them. They are fueling them more than they may realize.
I also feel that the fight or flight response becomes so touchy in those of us whose anxiety increases with PVCs, that adrenaline is released in lightning-fast spurts, with each heart skip. This adds not only to the perception of them (palpitation/felt) but also to the strength and frequency of them. While we can at times convince ourselves, saying "this is just part of my anxiety/stress disorder", the unpleasantness of them works in the back of our minds, saying to us "this is going to lead to a serious heart problem or arrhythmia for you if they keep happening like this".
I do feel anxiety is a very common trigger for PVCs and likely the number one trigger. Add to stress/anxiety, some caffeine or other stimulant or even digestive problems or hormonal/electrolyte imbalances and the PVCs can really flare and feel nasty. Amazingly, you can have far-less adrenaline in your body when anxiety is reduced and the PVCs are far-less noticeable. The hard thumps for example, feel more like gentle blips (if felt at all) and the head-rush or mild chest discomfort/pain that follows them might not be there at all when a person is relaxed. Of course this varies among us but I suspect this to be true in most cases.
I hope my post helps some of you understand the connection between ectopic beats and anxiety.
I wish you peace,