One of the simplest exercise to help sciatica in the lower back is to lie on you back on a firm but not hard surface. Pull your knees up as far as you can go (so that you are in a sort of foetal position and rock gently back and forward on your back. It massages the back and improves the blood flow as will as sort of unhinging the vertebrae. That being said anyone with lower back pain does need to check it out to make sure its 'only' sciatica.
Is it normal to talk to yourself?

