I have severe pain, but the stones are still in kidney? is it ever possible to have pain w/ stones in the kidney? narrowed ureter or randall's plaque?

Kidney pain possible: Though not as commonly felt to be a cause of renal colic due to lack of obstruction, some new studied suggest that renal stones depending on size and location may cause pain. It would be important for your urologist to detrermine the size and location of stones and consider treating the larger plaques or exposed calyceal stones. Narrowed ureter would require an evaluation for obstruction.

Sure. : Just because you have stones does not mean you can't get other pains or that the stones have not migrated somewhere else. Talk to your primary doctor or see a urologist.