I dont have the polar program and I dont think mine will download. The polar has that idividual thing where it only picks up the one strap so wasn't reading anyone elses. I always wet the sensor before putting it on...then the sweat takes over! I imagine it must have been the jersey thing, but will keep an eye on it.
I did an ECG and some bloods on myself at work last night....no issues....as healthy as can be. I had no symptoms that would indicate anything untoward.
Thanks for your help....