About a year and half ago I had two stones blasted and removed at two different times. Both were 6mm. At the time I had 5 more stones all at least 6mm +. Now I've been having pain in my side that comes and goes, is pretty unpleasant, but not unbearable like the ones that had dropped in my ureter before. Is it possible it's still in my kidney causing pain. What is the best way to deal with it?