I have kidney stones and now pain when i eat could something be wrong besides the stones? i also am having a sharp pain behind my right shoulder blade

? Gallstones: While unrelated to kidney stones, it's not impossible to also be experiencing colicky pain from cholelithiasis. Gallstone pain is typically precipitated from the ingestion of fatty foods, and is manifested as pain under the right rib cage and penetrating toward the back ("under your shoulder blade"). Gallstones are typically radiolucent and, therefore, need to be seen on US or CT scan.