back pain every morning

I get up every morning around 3 or 4 due to severe back pain, what else I can do?
I get up and stretch your back, but usually takes up to two hours before I can finally go back to sleep. My mattress was purchased from Rooms To Go less than a year ago and seems very comfortable. I have tried the pillow between the legs do the trick, but they work for me. How serious is this, and I have to live with this for the rest of my life? I am an active athlete and have not reached the big 2-0 yet.
Because only occurs at night, I believe that your mattress has something to do with it. If you are sure the mattress is not, I suggest to have a doctor check it out. Good luck, hope you feel better soon!
I’m ok-Christina Aguilera (with lyrics)

