The only correlation I've been able to find (because I developed stones and finally passed my last one February and am STONE FREE YIPPEE - had to get that one in there) is that if you have a Parathyroid issue which produced too much CALCIUM then you are predisposed to develop Calcium Oxalate stones.
Have they ck'd your calcium and other minearls, etc. thru 24hr urine and/or bloodwork?
It is essential with your history.
I, too, had ovarian cysts when I was having hyper #'s vs. my normal more hypo a few yrs ago ... they came for 2 yrs and are gone now .... as well as my #'s being better in the TSH dept. So I don't have a clinical answer but wonder.
A good ? for Dr. Lupo
http://www.medhelp.org/forums/show/120
Cheryl