You have two level disc degeneration, which is probably the cause of your back pain
Do you have any leg pain also or is it only back pain you are suffering from?
If it is only back pain, then treatment will be mostly in the form of physiotherapy
. You can take a short, continuous course of pain medications, but definitely not for long time as they are harmful.
You should avoid tread-mill and weight training
exercises. They will do more harm to your back.
Swimming or stationary cycle is good.
Surgery is the final answer to these kind of problems, and usually gives good result, however you are very young to have this kind of surgery, also you need to try a proper course of physiotherapist to see the real benefit out of it.
Hope this helps.
Dr. Amit Sharma