Hi my name is trina I been suffering with narrowing of my spine ... I can't walk far without stopping can't bend as wen I straighten up my bk in half can't sit for long or stand for long without achy all down my legs as well I heard bout p.i.p but not sure i don't like being told no ur not bad enough I had MRI SCAN ... CT SCAN... X-RAYS LUMBAR PUNCHERS NOTHING HELPING