Yes I have, I went to the doctors, he was a different doctor, my own was out of town at the time. anyway he said that it was muscle spasms and to do these exercises and he scheduled me for physical therapy etc etc, Now mind you, my body temp. was at 102. So I was feeling sick...well about a week went by and I was very sick by this time..sweating,fever, you name it. I called to make an appt. with my reg Doctor, when he saw me, he immediately took blood test, Not only did I have a kidney infection but by now all of my internal orgrans had a infection. He gave me 3 different kinds of injections of antibotices, each one looked like something you would give a horse, then I was given about a mouths worth of medication, yes you might want to say I wanted to die. I love my own doctor, he has saved me more then once. yes i have I have no clue about the kidneys but yes I have had back problems when I couldn't even get out of bed. i have had that, probably not so bad that i wanted to die. I actually still do get that when i consume alcohol i get really bad pains in my back, and sides and at the bottom of my belly, usually only when i drink vodka... It lasts anywhere between half an hour and an hour.. I had back pain pretty bad once...I had just had a baby and thought i was recovering from child birth. Then I got a fever of 104 and even more pain. I ended up in the ER with a kidney infection... Yeah, kidney stones. Worst pain I ever had. Like being stabbed in the back. Accompanied by nausea. I had to have lipotripsy where they try to smash the stone with ultrasound. Didn't really work. I finally pissed it out. The freaking thing was the size of an apple seed. Only a little piece busted off from the lipotripsy. Never eat Tums. The cheap calcium in those things is not easily absorbed by the body.