Almost anyone can flush stones from doing a Liver Flush or a series of flushes. If you try it you will most likely be shocked by what comes out (I know I was).
I know this forum includes a warning to start and finish every fast with a liver flush. That is a really good thing to do but I think many (maybe even most) don't and end up just fine. The problem is while fasting your liver may make more stones. You liver creates them to protect itself from parasites and other toxins it comes in contact with. When you cleanse those toxins are floating around more freely than normal on their way to being flushed out of you body.
If you aren't feeling pain or excess pressure in you liver, I would not stress about it. Instead I would just do a Liver Flush when you are done fasting.