Did a bit of Google searching but couldn't really find anything. I'm currently taking diet pills and am experiencing a faster than normal heart rate. I read that a faster heart rate while taking them is normal, but is it safe? I know if your heart rate is fast enough it will explode. I'm not exactly afraid of that but more worried about my heart becoming "tired." Thanks. Edit: I plan on returning these pills. I love them but I think they're very unhealthy.