Please assist i have discomfort in my legs when sitting and standing .whilst sitting standing pains stars in lower back results in difficulty walking?

One's Dr. can examin: The more common causes of lower back pain include: back muscle strain, back ligament sprain, fractured vertebra (spondylolysis), slipped vertebra (spondylolisthesis), herniated disc, spinal stenosis, spinal arthritis, urine infection, kidney infection or stone; tumor in the spine, kidney, or elsewhere; fibromyalgia, etc... With such a long list of possibilities, one's doctor should examine.