Anyone else have pain during Renal scan with lasix wash?

[lovenluck]

At first they inject radioactive stuff into your IV and shortly I got a feeling as though kicked in the back as I do off and on I asked tech if it was normal to feel the dye enter my kidney and she said no I shouldn't feel it so I thought ok co-incidence well then a little bit later she injected the saline and immediately lasix well then same time frame as the first injection I got this horrible pain again. Just a little background I have history of kidney stones I get em ever 2-3mos for the past year and a half have had lithotripsy just the ESW (electric shock waves) in sept and then in november had to go through it again only this time they went in with a scope and found that my ureter was smaller than normal peoples so he actually had to balloon inflate me I was somewhat constricted and placed stint I got stint out 3 weeks later now here it is January and I have a small movable area around kidney that is VERY painful and can be felt without pushing so the doc ordered this test after the hospital did an IVP and showed normal he wasn't convinced the radiologist was totally right because he had felt the swelling himself so ordered this test so my question is has anyone else felt pain not to long after each injection??? And if yes what were your findings. Not sure if this matters but im female and know for sure the pain is not related to any female organs as I have had a complete hysterectomy and oopherectomy (both ovaries removed) and cervix as well 2 years ago