Is PVC At 10-20 Per Day While On Hypertension And Cholesterol Medications Normal?

I am 41 year old male with a history of hypertension and high cholesterol. I take lisinopril 5mg, norvasc 5mg, zocor 80 mg, fenofibrate 200mg, and asa 81mg. My blood pressure and cholesterol are well controlled and all in the normal range. Recently, I have been experiencing PVCs at a rate of 10-20 per day. No chest pain or shortness of breath. I exercise 3-4 times per week at high intensity. The only symptom I have is the skipped beat and the next beat feels hard. They only happen 1 at a time. Seem to only happen at rest and resolve with exercise. My PCP says my ECG is perfectly normal (confirmed by a cardiologist). No family history of heart disease. My doctors say there is nothing wrong with me and these PVCs are just a nuisance. What is you opinion?