Recently, I have been having some back pain and I know it's not a one time thing because I don't seem to be able to sleep it off. It's there all the time. Btw, I do karate a few times a week but it can't be that because I recently started it after taking off for school clubs and drivers Ed. I'm just 16 so it isn't Anthony age related like artiritis or slip- disk. Anyone know what this could be?and no, weight is not my problem; I weigh 120 lbs Nd I'm about 5' 7".