i had lower back pain 2years ago and the doctor took xray but nothing was wrong so they gave me some painkillers and calcium meds.I was healed.Again 2days ago it started and it is very bad than last one. I didn't stretchd or hadn't any kind of pressure on my lower spine.At night i can't sleep of the pain. I had watched a movie 50/50,actor had cancer in lower back. i checked in google, it says young people have higher chances of having spine cancer. I am going to hospital today but i still want to know from other doctors, please.