Im only 17 years old, and have just been diagnosed with a bulging disc in my spine. I havent yet been to a specialist, so I dont know how bad it is. What I want to know is, what could have caused this? I do no sports, no heavy lifting, im not really much into alot of physical activity. I've never had any injuries, never been in any car accidents, never fallen or anything of the sort. I just dont know how this could have happened. Could anyone give me some advice?