Yes, I've had palpitations in the past, but I didn't really recognise them as such at the time and I ended up blacking out at the start of a run before I got checked out. However in my case the ECG showed clear abnormalities that thankfully were caused by long-term endurance training rather than any genetic cause, which would have been more serious.
There could be underlying issues, but generally an ECG would be the first indicator of those. It could just be overtraining and tiredness, but if you're concerned the best bet is to see your GP. Or, if it happens again in the meantime, go to A&E - at the end of the day, they're more reliable than anecdotal evidence on here!
If I've understood correctly, VDOT's point here is that parkrun have failed to do any bullying in this case, they've just rolled over and moved to another venue.
There will have been lots of cases where parkruns simply haven't started because they couldn’t get permission from the landowner. Probably far more than the number where permission is given, then either withdrawn later or a charge made. Only two of those so far as far as I know, which actually seems low to me given how many there are. There must be quite a few wig far more runners than the organisers or landowners originally envisaged.
That's the nail on the head for me there, Mr P. Some people will do lots to raise the money but still fall short, personally I don't think there's a problem with that. Others happen to have a large social circle and get there just by setting up a justgiving page and posting about it on FB. Unfortunately there are some who take a place and don't bother raising much at all, that's what the charities want to avoid.