Hello, everyone. I am relatively new here and wondering whether there is a site where I can see other peoples' AliveCor tracings? If so, could you direct me please? I had an episode this morning where the readings were completely wild, spiky and irregular, so I need to find out whether this was my heart or a quirk in the device. It lasted for over 8 minutes and told me that there was electrical interference. But even when I changed locations, the erratic tracings continued. I decided to get ready to go to a nearby clinic and ask them, but when I tested it again before leaving the house (15 minutes later) it returned to normal. So now I don't know what caused this. I got an alert saying that there was "electrical interference", but I was in the same spot in the house where I always test it, and when I moved to a different room, the erratic tracings continued. I tested in the same spot 15 minutes later, and it was back to normal. I am concerned because I have episodes of bigeminy and couplets where the PVCs occur over 20 times per minute and read that this can sometimes lead to ventricular tachycardia/fibrillation, so I am wondering whether this is what was recorded on the AliveCor tracing, or whether there really was some kind of outside interference. This same thing happened several months ago and the doctor said it was artifact from movement... but I am absolutely certain that on both occasions I was completely still and steady. In fact, I purposely took a reading where I moved my hands a lot to try to reproduce the same kind of spikes, and could not even do it on purpose. When the episodes occurred today, I took 6 readings and it showed heart rates of around 150 to 181 beats per minute. Has this ever happened to anyone else? If so, what could have caused this? I know that if I send it away to be read that they will say electrical interference, because the device is set up to automatically say these things. Whenever I am having an episode of very frequent PVCs, the device detects that as movement when it is trying to initialize and tells me to hold still. So I have to keep trying and wait for the PVCs to slow down some before the device will begin recording. I have learned that it has limitations, but I still love it what it does do. But this spiky rhythm has me concerned. The cardiologist does not like this device. She had me an event monitor for a month, but nothing like this happened during that time so I don't think she is too concerned. But now that it has happened again, I don't know whether I should call her back, find another cardiologist, or just accept that the device is detecting outside interference from something. Has anyone else had this happen and know what could have caused it to stop on its own and return to normal rhythm? Sorry this is so long. Thanks in advance to anyone who read all the way through.