Wake for first time at noon go to loo. Shower and look outside.
The people on site have been very kind and they got me some fruit and 6 litres of fruit juices, I was so dehydrated I drank all of that and 2 litres of water [boiled] and still didn't need a pee!
I had no strength and could not even unscrew the orange juice carton top and ring pull by myself. I thought it was Wednesday so I stayed up for an hour still tired and don't wake up till next day.