Is It Normal To Have PVCs While Tired Or Anxious?

im 33 year old male i have a palpations at times and i gone for several test my ecg and 2d echo is normal my stress test is normal but my doctor told me that im having few pvc while im doing the late face of the treadmill stresstest because im so tired at the late face .is it normal to have pvc when your tired or anxious?by the way im am hypertensive and a take verapamil 80mg a day.my bp when resting is 100/70.my lipid profile is normal may Ldl result is 185 and the conventional rate is 200 .pls help me im so anxious about the pvc thing?thank you and god bless