I am a 29 your old woman and I have been having a lot of pain under my rib cage. it starts underneath my breasts and its under my ribs as if it were like inside of my ribs. it also makes it difficult to take a deep breath. I am overweight and I have had health problems with kidney stones but never anything like this. I would appreciate anybody's point of view. I am trying to get a few ideas before calling my doctor or going to the hospital.