It is Monday, the day after. And I'm feeling OK. I did wake up with a bit of a sore head, as I've had too much to drink, but I'm OK now. For those who haven't read my messages on social media yesterday (and weeks prior too), I was in London yesterday, at a little venue called Silverworks Island (which is next to the Thames), to see DJ Tiësto. And it was magnificent. As you can see on the image above, it was packed to the max, and for good reasons. Everything that could have gone wrong, didn't.…