I have experienced excessive pvc's for about 1 wk. From 1 pvc every 4-10 contractions. I had a heatr attack in 2001. I have left bundle branch block. A stress test 3 yrs ago showed no heart muscle damage. I am over weight..I am om synthyroid..simvastin..diovan..Omeprozole..iron..and I take tylenol for arthritic pain( about 2000mg qd. I am not under excessive stress. That said do I need to have any studies done?