I have seen my doctor and he suggested I had an x Ray. Those results showed that this lump wasn't bone. It's located about one third along the rib from my sternum and is about the size of a prune. I've noticed my rib cage is a lot higher on the left now and I always have a pain there now, especially when lying on it in bed. I am not waiting for a CT scan to investigate further but the waiting is driving me insane. What could this be?