Thanks so much for the comments! Actually I do think I tend to get dehydrated. When they ran a blood test on me they said I was a little dehydrated. And I agree, I'm starting to realize that when I'm feeling a lot of stress I will feel them. I've been under a tremendous amount of stress the last ten months or so but I didn't have PVC's until about a month ago. I'm still trying to get used to this all. I'm trying to give stuff over to God more and quit holding on to so much. I have been feeling better the last few weeks. Thanks again for sharing your thoughts!
My doctor said that it is common that after something strenuous, like exercise, for there to be an increase. Something about when the heart slows down from a lot of activity it allows the PVCs to react, since supposedly they occur more during a slow heart rate. Mine tend to happen when I'm under stress, and not all the time. It's so hit and miss, but exercise is supposed to relieve the frequency and strength in general. Take care.
We all have different triggers, but one common thread seems to be stress - both physical and emotional. Are you dehydrated? Did you over-work yourself? Those are some possibilities.