Did you do something bad in a previous life? sounds like self punishment! can't wait
this may sound weird, but I've been commuting on and off to work with a heavy rucksack. I find I can maintain a faster average speed with about half a stone on my back than when without, almost 2mph more.
I understand the laws of momentum, but surely I'm defying some other laws of physics, like more weight = more knackered?
Does this mean i'm too light, and need to put a bit of weight on (hopefully muscle)??