I agree...my husband had one thought as to the cause of that one stone..
either too much cheese (a favorite of mine) or
too much calcium recently...(Cal-mag-zinc tablets for other troubles)...
So am cutting down on the cheese...and when I take the tablets (a lot less often) I am disolving them in grapfruit juice first...its acidic content helps a lot.
BTW add garlic to both helping and another way to prevent
stones...only trouble is bad breath....even the "oderless" tablets (basically dehydrated garlic...by naturemade) coated with coated with enteric coating still cause bad breath troubles..
Oh well! (any ideas?)