After getting a terminator and zapping for two months I began to have heart pvc's. My mom bought a zapper about a week after me and when visiting her for christmas she was experiencing the same thing. I told her to stop zapping and it went away just as mine did after not zapping for about 5 days. Maybe I was overusing it I thought as I was almost using it 24/7 but my mom developed same symptoms and she would zap 20 minutes a day. I did notice some benefits to the zapper but now 10 days later and no more zapping some of the symptoms the zapper had suppressed are back. Anyone else ever have the zapper cause an irregular heart beat.