I have lower left back pain, stiffnes on my left side of the back to the touch, my left side of my neck gets stiff, pain sitting down on left lower left back, pain bending forward on lower left back, it's like a burning sensation, MRI done with no pinched nerves, no bone spurs, no anything, can it be MULTIFIDUS MUSCLE PAIN? Help me !!!! It's been two years!!!!