Need some advice on where to go next

I have had kidney stones for that pass 3 years. I have been to several uroligist and have not gotten any answers as to why I keep forming the stones. The only thing I do know is I have 2 differnt types of stones. I am in constant pain and it is effecting my quality of life. I have done everything that was recommended by the Dr's. I am at the end of my rope. This awful diease has taken over my life. I am sick of getting lipostispys done because everytime I get them done I wind back having to get a second procedure becuase they Dr's keep missing the stone.