I've seen that "The slower your heart rate the more you feel them" but that's for some, not others. Can't tell you how many times I've been plagued with more PVCs than normal, taken my pulse, and found rather than 60 resting rate, it was in the 70's. Take my second dose that day a little early and shazzam, the extra PVCs decrease in number. (I've been told by my cardiologist to take more when they are a problem, no one should do this without consulting your doctor).
Yet you may notice them more if your heart rate is slower due to what is known as a "Compensatory Pause".
Which is: "The pause following an extrasystole, when the pause is long enough to compensate for the prematurity of the extrasystole; the short cycle ending with the extrasystole plus the pause following the extrasystole together equal two of the regular cycles."
So, if you're heart is beating slower, the pause should be longer, the heart fills with more blood than usual, and when the next beat occurs after the pause, you feel the bang in your chest as the blood is pushed out. This is the reason we feel them to begin with, we usually don't feel the premature beat, we feel the extra effort necessary to clear the additional blood in the heart.
Alas, the madder and more irritable you are, the more likely you are to get them, adrenaline comes into play. Trust me, I've had them for 40 years now, no matter how frustrated I am, no matter how much I want them to go away, they won't, you just can't bargain with them. If I relax, not for hours, or days, or weeks, but long term, they occasionally go away for awhile. Oh it's heavenly, I even start drinking coffee again. Many people have them but don't feel them, but they're still the same, provided they don't represent structural or electrical issues with their hearts, benign is benign whether or not you can feel them.
While we're on that topic, you don't use caffeine or smoke I hope? No alcohol? Watch the cold medications, diet pills, stuff like that.