I never train if I´ve got the fever. If I´ve got a little bit cold I do my work-out but I never go all out on the exercises.

Stomach flu?? Shit, never even dare to go near my gym....
That´s the worst case of sick u can get if you´re bodybuilding...the mass floats out of your body....

Yuucckk!

But, as mentioned above, listen to your body, it tells you even more than u can dream of.