When I touch the tip of my last left rib, it s very sensitive and it hurts. It has to be specifically the tip of my last left rib, all other ribs are OK. I also experience chronic weak dull pain in my left side when sitting, almost every day. Lying down is OK, walking is usually also fine. Standing sometimes hurts after a while. Massages, physiotherapy, yoga and chiropractor did not help. My rib is supposedly not dislocated. Could this be a nerve problem?