Chiropractic is a health care discipline and profession that emphasizes diagnosis, treatment and prevention of mechanical disorders of the musculoskeletal system, especially the spine, under the hypothesis that these disorders affect general health via the nervous system It is generally categorized as complementary and alternative medicine (CAM)
A chiropractor deals with bone/skeletal issues, not muscle or nerve issues. If your leg numbness, tingling and sharp pains are caused by diabetes you should see an Endocrinologist then perhaps a Rheumatologist. Acupuncture may help.