I've been wondering for a long time now wheater or not I get that in my legs. The problem is that I don't know how it feels! Is it that slight burning sensation or is it the feeling when suddenly your legs fell like they weigh about 100 kg each or what? And if I get the acid is it still ok to keep on going?

This popped into my mind when this Fininsh guy who was expected to win a gold medal in Torino used this as an excuse to come in 9th instead of winning