They way it says "on the vertebral body" seems to indicate this this object is on your bone. That would not have anything to do with MS.
That does not mean you don't have MS, but I can't imagine MS lesions showing up on an x-ray. If you suspect MS, you need to see an MS specialist (neurologist). It is common to be diagnosed with Fibromyalgia before MS. It can be a misdiagnosis or it is possible to have both. Best of luck to you.