You are certainly not alone. I have had PVCs on and off for many years and am also your age. The sensation is unsettling, to say the least. Some cardiologists call them capricious - they tend to wax and wane. You will most probably "lose" them at some point and forget about them for months or years, before they pop back up for a bit with some stressful event, hormones, etc. There is a free 8 week MBSR course called Palouse mindfulness - you can Google it. I remember back in the day when those were happening, I found the course and completed it. By the end of the 8 weeks the PVCs disappeared, but I think more importantly I had picked a "tool" that helped me inhabit a body that isn't always behaving. Also, the deep relaxation you enter when you get habituated to the meditation practice is such a treat! If you have an hour to commit a day, that might be one of the best gifts you can give yourself, while waiting it out. Oh, and a few months of regular exercise fix them quite well (but I understand that can be hard so soon after covid).