I've had a couple of cups of coffee and some vitamins (soluble) but no food - felt ok until about 25mins when my right leg started to go numb again. some wriggling minimised it, but i could hardly stand on it when I finished.
I've obviously changed something I can't quite put my finger/bum on and it's a little frustrating, but I worked it out before, so hopefully I can do so again. Or I just have to accept my body is telling me to do more shorter intervals

Time Meters Pace Watts Cal/Hr S/M
36:39.1 8,121m 2:15.3 141 785 21
7:37.8 1,700m 2:14.6 143 793 21
7:41.5 3,400m 2:15.7 140 781 21
7:46.3 5,100m 2:17.1 136 766 21
7:40.9 6,800m 2:15.5 141 783 22
5:52.6 8,121m 2:13.4 147 806 22
Anyhoo - signing off for Christmas - I hope you've all not been on the naughty list and you get lots of nice presents and food.