My primary care doc says the vegas nerve runs alongside the
heart and if it is irriatated, it can cause
heart issues. Your pregnancy might be triggering your pvcs. I had terrible heartburn during pregnancy, as I was shortwaisted and there wasn't a lot of room with everything pushing up. I take Prevacid 30 mg. in the morning and it seems to quiet things down. The last time I was having problems, I had gone off the Prevacid.