I just had a CT scan to check for kidney stones and I was told that I had none visible but that it did show that I had gallstones. All of my symptoms point to kidney stones, not gallstones. My pain is on the left side and severe nausea that is getting worse even though the pain has lessened in the last 24 hours. My doctor ordered the CT scan since I have a history of kidney stones. Can a CT scan miss the stones?