If you have sciatica, you know how much it can affect your daily life. Sciatica starts in a nerve root in the lower part of your back, called the "lumbar" spine. But you may feel its symptoms in your buttock, thigh, leg or foot. You may have pain, weakness, numbness and tingling sensations. Sciatica can keep you from being active. A chiropractor can find out why you are hurting, and can help give you relief.