I get a lot of flank pain, low back pain and pain with urination. I think those can be associated with kidney stones.

I do actually. I think its related to endo, but my doctor dismissed it. I can track it to the progesterone in my body... Its nice to have the validation that I'm not crazy. I get no pain with urination, but let me know if you get any info about this... Its been going on for years.