I am almost 70 now and have had pvc problems since I was 13. Over the years I got good advice on how to control, and, in my case eliminate symptoms. At one point they were so bad and continual that I barely functioned. That was 30 years ago.
The principle things that help are a daily dose of 400mg magnesium and 100mg potassium; regular, serious (in the gym) exercise (but not excessive); and a sleeping wedge pillow. For reasons I don't understand, sleeping with my body from the waist up somewhat elevated seems to greatly improve the oxygen flow to my heart. It was a huge help when I learned that trick. Anything that constricts oxygen will set off pvc's in my experience, including stress and caffeine. Of course, that would include smoking and obesity (which have never been part of my life).
I went to two cardiologists over the years, and neither one could tell me anything, but meds, that might help. I did try a statin for a while, but it robbed me of all energy. I soon dropped that. If I miss even a day of the mg/k, I will have problems. Sleeping without the wedge is out of the question. I even have one that folds for traveling.
Hope this helps someone.