Something hard forming inside from what was never let go — that is the reading of kidney stones in dreams. They point to held-in grievances that have turned solid.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.