Hi . Months ago I started to feel like I have a ball or a bag of water under my left rib cage ( diaphragm) that sometimes shakes when I move . then I noticed that the left side is thicker than the right side . All of this is more noticeable when I am sitting down ( it is like I have more flash under my bra on the left side nor than the right side) and I went 2 many doctors it is either they don't understand my case or they don't examinate me well and I fell like it is so hard 2 explain what are my symptoms. And what make it worse is that I am afraid that is might be some kind of tumor ( I have a phobia of cancer by the way) so have somebody went through this like me ? ??