Suffering frm back pain since 2 yrs - which goes down to legs shivering, mri done - result- straightening of lumbar spine, sacroilitis plz help?

You are going 2 need: A complete medical analysis for this one, I'm afraid the internet won't be much help. The first thing that I think of when I hear your imaging findings is an inflammatory auto immune disorder. I suggest that you see a general internist to begin your evaluation. A pain specialist will also be very helpful. Once you know what is causing this, then you can set about treating the cause. Best to you !