Pain In my kidneys and under my left rib

Ok to start this off, I am a 27 year old female. For the past 10 years I have had hydronephrosis is my right kidney. Which was caused by a blocked urether. I found out a year and a half ago that I had a kidney stone. I went to see the urologists many of times. Finally the okayed me for surgery. So I had multiple kidney stones removed. And my right urether opened during the surgery. Everything was successful. A few months after surgery, like a few weeks ago I started getting pain again in my right kidney. And it feels like I have a kidney stone all over again. (which could be possible). But during this time i started getting pains in my stomach. At this time i tested positive for H pylori. They gave me a bunch of antibotics and i felt better. Now a few weeks later i got a cramping feeling in my left kidney. it felt like someone was clentching my kidney or squuezing it. This happened one day for a few hours on and off. Then About a week later i started getting pain in the middle of my back, i also have a sharp stabbing pain on the left side under my ribcage. Any one know anything about this...Please help me....The er and many doctors have checked me out and say there is nothing wrong with me....I know there is i know my body!