yes thirteen there is a nerve from from your spine connecting to your stomach. In acupuncture the location of this point is immediately below thoracic 12 of your spine. In fact all major organs of our body are connected to the spine thru a network called meridians. By gently massaging both sides of your spine, about 2 fingers width from your spine, with firm downward motion you can actually stimulate these points and achieve a therapeutic effect. Ask someone to massage your back daily for one week & you'll see results.