Without a doubt, the worst thing a doctor has told me about my back is that I probably will never get rid of it or to be more specific that I wont be able to train martial arts again. I dont want to seem ungrateful( the fact that I can walk and move) but to blurt something out, like that to me, was devastating. Training and fitness are the one thing in life that I love and release a lovely dose of endorphins to me EVERYDAY. I have carried that diagnoses around with me and when I see people doing physical stuff it makes me very depressed and frightened that I will never be able to do the things that I love most, again.