I have a strange feeling under my rib cage like there is something there or something has come loose?! it's been causing discomfort but no pain! very hard to describe to people, like a knocking/popping against my bottom left ribs when i move in a certain way - especially when i move forwards/backwards in my chair at work, and when stretching up/bending downwards. can't actually feel anything there, i keep trying as i'm sure there must be something there like a lump or an organ enlarged. there's no pain which is the most bizarre thing! I've found a few people on here with the same thing.... and one person suggests that it could be a cyst on the spleen, another that it is an enlarged stomach muscle! please let me know what you think! no pain, no gas, i'm not over/under weight, eat healthily and do regular excercise...